Why is "Vague impacts without figures or named cases" a common mistake in Impacts of Deforestation - social, economic and environmental?

Why it happens: Students learn 'CO2 is released' or 'trees are cut down' without committing specific data to memory. How to avoid it: Memorise the Amazon spine: 5.5m km² total / 10,000 km²/yr 2020s / 17% lost / 20-25% tipping point / $33-125tn ecosystem services / now carbon source (Gatti 2021). Source: Pearson 4GE1 Examiner Reports — Paper 2 Section C

Why is "Focusing only on environmental impacts, ignoring social + economic" a common mistake in Impacts of Deforestation - social, economic and environmental?

Why it happens: Environmental impacts are most discussed in media + textbooks; students forget the spec requires all three categories. How to avoid it: Always cover SOCIAL (indigenous, livelihoods) + ECONOMIC (short vs long-term) + ENVIRONMENTAL (CO2, biodiversity, rainfall) — Pearson 7.2b explicitly names all three. Source: Pearson 4GE1 Examiner Reports — Paper 2 Section C

Why is "Using only the Amazon as case study" a common mistake in Impacts of Deforestation - social, economic and environmental?

Why it happens: Amazon dominates media coverage; students don't memorise other regions. How to avoid it: Build a 2-case spine: Amazon (cattle/soy/savannisation) + Southeast Asia palm oil (peatland fires/orangutan/2015 ~1.7 Gt CO2). Comparison + contrast scores AO3 marks. Source: Pearson 4GE1 Examiner Reports — Paper 2 Section C

Why is "Treating economic gains as if they were permanent + positive" a common mistake in Impacts of Deforestation - social, economic and environmental?

Why it happens: $10bn/yr cattle exports sounds impressive; the tipping-point self-damage argument is harder to grasp. How to avoid it: Always pair short-term gains with long-term losses: ecosystem services $33-125tn (Costanza); soy yields could fall 10-20% past tipping point (own-rainfall feedback per Salati). Source: Pearson 4GE1 Examiner Reports — Paper 2 Section C

Why is "Missing the feedback loops + tipping point" a common mistake in Impacts of Deforestation - social, economic and environmental?

Why it happens: Feedback loops are conceptually demanding — easier to list impacts as isolated points. How to avoid it: Memorise the loop: less forest → less rainfall (Salati ~50% recycling) → more drought → more fires → more loss → tipping at 20-25% (Lovejoy + Nobre 2018) → irreversible savannisation. Source: Pearson 4GE1 Examiner Reports — Paper 2 Section C

Why is "Assuming deforestation cannot be stopped" a common mistake in Impacts of Deforestation - social, economic and environmental?

Why it happens: Media pessimism + Bolsonaro-era headlines; students miss success cases. How to avoid it: Memorise 3 success cases: Brazil PPCDAm 2004-12 (80% reduction); Costa Rica PES (21%→60% forest); soy moratorium 2006 (70% reduction). Plus EU Deforestation Reg 2024-25. Source: Pearson 4GE1 Examiner Reports — Paper 2 Section C

Edexcel IGCSE Geography (4GE1)

Impacts of Deforestation - social, economic and environmental

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Detailed Study Notes

Detailed notes on Fragile environments and climate change for Edexcel IGCSE Geography, covering key concepts, explanations, examples, and exam-focused revision points.

Impacts of Deforestation — Pearson Edexcel International GCSE Geography (4GE1) Study Notes

Spec 7.2b: SOCIAL, ECONOMIC and ENVIRONMENTAL impacts of deforestation. Amazon core case (~5.5m km², ~10,000 km²/yr 2020s INPE, ~17% lost, 20-25% savannisation tipping point per Lovejoy + Nobre 2018) + Southeast Asia palm oil (Indonesia + Malaysia ~13m ha, 2015 fires ~1.7 Gt CO2). Specific impacts: Yanomami displaced, Amazon now net carbon source (Gatti 2021), ecosystem services $33-125tn (Costanza), orangutan habitat -50%, 2015 fires ~100k premature deaths (Lancet).

At a glance

3 impact categories: SOCIAL (people: displacement, health, culture) + ECONOMIC (short vs long-term) + ENVIRONMENTAL (CO2, biodiversity, rainfall).
Amazon scale: ~5.5m km² total; ~10,000 km²/yr 2020s (INPE PRODES); ~17% already cleared.
Tipping point at 20-25% loss → savannisation (Lovejoy + Nobre 2018) — irreversible.
Yanomami (~30,000) displaced by ~20,000 illegal miners 2019-23 (Bolsonaro era); Lula health emergency 2023.
Amazon is now net carbon SOURCE in 2020s (Gatti et al. Nature 2021) — was sink.
Ecosystem services valued $33tn-125tn globally (Costanza 1997/2014).
Salati 1979: Amazon recycles ~50% of own rainfall — deforestation reduces rainfall regionally ~20-30%.
Palm oil SE Asia: Indonesia + Malaysia ~13m ha (~85% global); 2015 peatland fires ~1.7 Gt CO2 (>US annual); ~100k premature deaths (Lancet).
Orangutan habitat -50% in 16 years in Borneo + Sumatra.
Success cases: Brazil PPCDAm 2004-12 cut deforestation 80%; Costa Rica PES tripled forest (21%→60%); soy moratorium 2006 cut soy-driven deforestation 70%.
Demand-side: EU Deforestation Regulation 2024-25 + Lula 2023 cut Brazil deforestation 50%.

What you’ll learn

Mapped to the Edexcel IGCSE 4GE1 syllabus (2026 onwards).

Define deforestation + state scale (5.5m km² Amazon, ~10,000 km²/yr).
Describe SOCIAL impacts (indigenous, health, culture) with figures.
Describe ECONOMIC impacts (short vs long-term tension).
Describe ENVIRONMENTAL impacts (CO2, biodiversity, rainfall, tipping point).
Compare Amazon vs Southeast Asia (palm oil) cases.
Evaluate which impacts are most significant + why.
Recognise that deforestation CAN be stopped (PPCDAm, PES, soy moratorium, EU Reg).

Categorising deforestation impacts

Pearson spec 7.2b: SOCIAL + ECONOMIC + ENVIRONMENTAL. Memorise the triple — always cover all three.

Pearson 4GE1 spec 7.2b requires you to describe + evaluate deforestation impacts in three categories.

Category	Examples
Social	Indigenous displacement; loss of cultural heritage; activists killed; loss of medicinal plants; health (mercury poisoning, fires)
Economic	Short-term gains (cattle, soy, palm oil, timber); long-term losses (ecosystem services, agricultural impacts, climate-disaster costs)
Environmental	CO2 release; biodiversity loss; soil erosion; reduced rainfall; tipping points; feedback loops

Case study spine.

Primary case — Amazon: ~5.5m km² rainforest spanning Brazil + Peru + Colombia + Venezuela + Bolivia + Ecuador + Guyana + Suriname + French Guiana. Brazil holds ~60%. ~10,000 km²/yr loss in 2020s per INPE PRODES satellite monitoring; ~17% (~870,000 km²) already cleared.
Secondary case — Southeast Asia palm oil: Indonesia + Malaysia produce ~85% of world's palm oil (~13m ha plantations); 2015 fires released ~1.7 Gt CO2.

Why this matters globally.

Tropical rainforests cover ~7% of Earth's land but contain >50% of species (E.O. Wilson).
Amazon stores ~140-200 GtC in biomass + soils.
Tropical deforestation = ~10% of global CO2 emissions (IPCC AR6).
1.6bn people depend on forests (FAO).

3 impact categories: SOCIAL + ECONOMIC + ENVIRONMENTAL (spec 7.2b).
Amazon ~5.5m km²; ~10,000 km²/yr 2020s loss (INPE); ~17% cleared.
Palm oil SE Asia ~13m ha; 2015 fires ~1.7 Gt CO2.
Rainforests = 7% Earth land but >50% species; ~10% global CO2 emissions.

Economic impacts — short-term gains vs long-term losses

Brazil cattle ~ $10bn + soy ~$ 50bn/yr; but ecosystem services $33-125tn (Costanza); soy yields could fall 10-20% past tipping point.

Short-term gains.

Brazil cattle exports: ~$10bn/yr; ~300m+ cattle herd (world's largest); ~80% of Amazon deforestation cleared for pasture.
Brazil soy exports: ~$50bn/yr; ~30m ha planted; mostly in Cerrado + Amazon frontier.
Brazil timber + minerals: ~$1bn/yr legal + much more illegal.
Palm oil Indonesia + Malaysia: ~$45bn/yr + ~16m direct jobs; cheapest edible oil; in ~50% of supermarket products.

These gains accrue to a narrow agribusiness elite: ~40% of Brazilian Congress is bancada ruralista (rural lobby). Rural Amazon states remain among Brazil's poorest.

Long-term losses.

Ecosystem services valued $33tn-125tn globally (Costanza 1997, 2014). Per ha: rainforests provide$ 5,000-50,000/yr in carbon storage, water regulation, biodiversity, cultural value.
Pasture degradation: Amazon soils thin + nutrient-poor; cleared pastures degrade in 5-10 years; ~24% of Brazilian Amazon already classified as degraded.
Agribusiness self-damage: Brazilian soy yields could fall 10-20% if Amazon's ~50% rainfall recycling (Salati 1979) collapses past the tipping point. São Paulo + Rio depend on Amazon-derived rainfall ("flying rivers").
Insurance + climate-disaster costs rising globally.

The paradox.

Agribusiness is ULTIMATELY damaged by the very deforestation that creates its short-term profits. Studies estimate ~$317 billion in long-term Brazilian agricultural losses if tipping point crossed.

The fairness question.

Gains concentrate in elite; losses spread globally (climate change).
Indigenous + local communities bear costs without sharing in profits.

Short-term: Brazil ~ $10bn cattle + ~$ 50bn soy; Indonesia ~$45bn palm oil + ~16m jobs.
Gains accrue to narrow elite (~40% Brazilian Congress = rural lobby).
Long-term: ecosystem services $33-125tn (Costanza); pastures degrade 5-10 yrs.
Agribusiness self-damage: soy yields could fall 10-20% past tipping point.
São Paulo + Rio depend on Amazon-derived 'flying rivers' rainfall.

Environmental impacts — CO2, biodiversity, rainfall, tipping point

Amazon now net carbon source (Gatti 2021); ~10% global species at risk (IPBES); rainfall recycling collapse; 20-25% tipping point.

CO2 release — most globally significant.

Tropical deforestation = ~10% of global CO2 emissions (IPCC AR6).
Amazon stores ~140-200 GtC in biomass + soils.
Amazon became net carbon SOURCE in 2020s (Gatti et al. Nature 2021). Previously absorbed ~0.5 GtC/yr; now releases.
2019 Amazon fires released ~906 million tonnes CO2; 2015 Indonesia peatland fires released ~1.7 Gt CO2 (more than entire US annual emissions).
Peatland fires especially damaging: peat stores carbon centuries-deep; once burned, carbon permanently released.

Biodiversity loss.

Amazon contains ~10% of global species; ~2.5m insect species; 30,000+ plant species.
Iconic threatened species: jaguar, harpy eagle, Amazon river dolphin, giant otter.
Borneo/Sumatra: orangutan (Sumatran ~14,000 + Bornean ~104,000); habitat down ~50% in 16 years.
~25 Sumatran tigers killed annually (~400 remaining).
IPBES Global Assessment (2019): ~1 million species at risk of extinction globally, many in tropical rainforests.

Soil erosion + nutrient loss.

Rainforest soils are surprisingly thin + nutrient-poor — most nutrients are in the biomass, not the ground.
Once cleared, tropical rain erodes topsoil at ~50 t/ha/yr (vs natural rainforest <1 t/ha/yr).
Pastures degrade within 5-10 years; require more clearance to maintain output.

Reduced regional rainfall + savannisation tipping point.

Salati (1979) showed Amazon recycles ~50% of its own rainfall via evapotranspiration ("flying rivers").
Deforestation reduces regional rainfall by ~20-30%.
Lovejoy + Nobre (2018, Science Advances) identified a tipping point at 20-25% deforestation — beyond which Amazon flips to drier savanna ecosystem.
Current loss already ~17% — perilously close.
Once tipped, recovery would take thousands of years.

Feedback loops.

The most dangerous environmental impact: less forest → less rainfall → more drought → more fires → more loss → tipping. This is why the tipping point is irreversible on human timescales.

CO2: tropical deforestation ~10% global emissions; Amazon NOW net carbon source (Gatti 2021).
2019 Amazon fires ~906 Mt CO2; 2015 Indonesia peatland fires ~1.7 Gt CO2 (>US annual).
Biodiversity: Amazon ~10% global species; ~1m species at risk (IPBES); orangutan -50% habitat 16 yrs.
Soil erosion ~50 t/ha/yr post-clearance; pastures degrade 5-10 yrs.
Salati 1979: Amazon recycles ~50% own rainfall; deforestation reduces rainfall ~20-30%.
Lovejoy + Nobre 2018: 20-25% deforestation = savannisation tipping point — irreversible.

Comparing Amazon and Southeast Asia palm oil

Amazon driven by cattle + soy with savannisation tipping point; SE Asia palm oil + peatland fires + immediate health crisis.

Element	Amazon	SE Asia palm oil
Region	Brazil + 8 neighbours	Indonesia + Malaysia
Scale	~5.5m km² total; ~17% lost	~13m ha plantations
Annual loss	~10,000 km²/yr 2020s (INPE)	~600k ha/yr Indonesia
Primary driver	Cattle ~80% + soy ~10%	Palm oil ~85% global supply
Economic value	Brazil cattle ~ $10bn + soy ~$ 50bn	Indonesia palm oil ~$45bn + 16m jobs
Key environmental	Tipping point savannisation; carbon source 2020s (Gatti 2021)	Peatland fires ~1.7 Gt CO2 2015
Key social	Yanomami 30k vs 20k miners 2019-23	Dayak displaced; ~100k premature deaths 2015 fires (Lancet)
Key biodiversity	Jaguar, harpy eagle, river dolphin	Orangutan -50% habitat 16 yrs; Sumatran tiger ~400 left
Yield	Cattle ~0.5 t/ha/yr; soy ~3 t/ha/yr	Palm oil ~3.7 t/ha (highest oil yield)
Policy successes	PPCDAm 2004-12 80% cut; Lula 2023 50% cut	RSPO ~20% market; 2018-21 moratorium
Policy failures	Bolsonaro era 2019-22 +75%	2021 moratorium lapse

Key differences.

Per-ha CO2 release: SE Asia HIGHER due to peatland (carbon-rich).
Total carbon stock: Amazon LARGER (much bigger area).
Immediate human health: SE Asia WORSE (~100,000 premature deaths from 2015 fire smoke).
Long-term tipping risk: Amazon WORSE (savannisation 20-25% point).
Yield substitution: Palm oil HARDER to replace (3.7 t/ha vs alternatives 0.6-0.8).

Both face EU Deforestation Regulation 2024-25 banning imports linked to post-2020 deforestation.

Amazon: cattle + soy; savannisation tipping point; carbon source 2020s.
SE Asia: palm oil + peatland fires; ~100k deaths from 2015 smoke (Lancet).
Per-ha CO2 worse in SE Asia (peat); total carbon stock larger in Amazon.
Palm oil hardest to substitute (3.7 t/ha yield).
Both face EU Deforestation Reg 2024-25.

Evaluation — which impacts are most significant + can it be stopped?

Environmental impacts most significant (global, irreversible, drive social + economic). Deforestation CAN be stopped — Brazil PPCDAm + Costa Rica PES + soy moratorium prove it.

Which impacts most significant?

Rank: Environmental > Economic > Social, because:

Environmental impacts are GLOBAL — CO2 affects 8 billion people; biodiversity loss affects future generations.
Environmental impacts are IRREVERSIBLE — savannisation tipping point, species extinction, peat carbon release.
Environmental impacts DRIVE the other two — climate change worsens displacement (~143m climate migrants by 2050 per World Bank), undermines agribusiness (soy yields).

But all three are entangled — the strongest answers recognise the FEEDBACK LOOPS between categories.

Can deforestation be stopped?

Three success cases prove YES:

Brazil PPCDAm (2004 under Lula's first term) cut Amazon deforestation 80% (peak 27,000 km²/yr → 4,500 by 2012). Used real-time satellite monitoring (DETER), fines, supply-chain restrictions, indigenous land demarcation.
Costa Rica PES (Payments for Ecosystem Services) tripled forest cover from 21% in 1980s to ~60% today; landowners paid ~ $60/ha/yr. Ecotourism now ~$ 4bn/yr industry.
Soy Moratorium (2006) — Cargill, Bunge + other major traders refused to buy soy from newly-cleared Amazon land; cut soy-driven deforestation ~70%.

But success is fragile. Bolsonaro era (2019-22) reversed Brazil's gains: ~75% rise in deforestation. Lula's 2023 government cut it 50% again — proving political reversal is possible BOTH ways.

Future leverage points.

Demand-side regulation: EU Deforestation Regulation 2024-25 bans imports linked to post-2020 deforestation; covers ~50% of Brazilian + Indonesian commodity markets.
Carbon markets: Verra credits, Article 6 Paris Agreement.
Net Zero pledges: Brazil 2050, EU 2050.
Indigenous land rights: Brazilian indigenous territories cover ~14% of country and lose forest at 1/10 the rate of non-indigenous land.

Top-band conclusion line.

"Economic incentives drive deforestation, but they are NOT immutable — strong governance + demand-side pressure + indigenous rights can reverse the trend, as Brazil PPCDAm + Costa Rica PES + soy moratorium prove."

Environmental impacts most significant (global, irreversible, drive others).
But all 3 interlink via feedback loops.
Deforestation CAN be stopped: Brazil PPCDAm 80% cut; Costa Rica PES 21%→60%; soy moratorium 70%.
Success fragile (Bolsonaro reversal) but reversible (Lula 2023 50% cut).
Future leverage: EU Deforestation Reg 2024-25, carbon markets, indigenous rights.

Quick recap

3 impact categories (spec 7.2b): SOCIAL + ECONOMIC + ENVIRONMENTAL.
Amazon ~5.5m km², ~10,000 km²/yr 2020s (INPE), ~17% lost, tipping at 20-25% (Lovejoy + Nobre 2018).
Social: Yanomami 30k vs 20k miners 2019-23; 400+ activists killed Brazil 2002-22; ~25% pharma ingredients.
Economic: $10bn cattle +$ 50bn soy vs $33-125tn ecosystem services (Costanza); soy self-damaging.
Environmental: now carbon source (Gatti 2021); ~1m species at risk (IPBES); Salati ~50% rainfall recycling.
Palm oil SE Asia: ~13m ha; 2015 fires ~1.7 Gt CO2 + ~100k deaths (Lancet); orangutan -50% habitat.
Deforestation CAN be stopped: PPCDAm 80% cut; Costa Rica PES 21%→60%; soy moratorium 70%.

Memorise this

Verbatim phrases and definitions Edexcel mark schemes credit.

3 categories: SOCIAL + ECONOMIC + ENVIRONMENTAL (spec 7.2b).
Amazon: ~5.5m km², ~10k km²/yr 2020s (INPE), ~17% lost.
Tipping point: 20-25% (Lovejoy + Nobre 2018) → savannisation.
Yanomami: ~30k people vs ~20k illegal miners 2019-23.
Activists killed Brazil 2002-22: 400+ (Global Witness).
Amazon now carbon SOURCE 2020s (Gatti et al. Nature 2021).
Ecosystem services: $33tn-125tn (Costanza 1997/2014).
Salati 1979: Amazon recycles ~50% own rainfall.
Palm oil: ~13m ha; 2015 fires ~1.7 Gt CO2; ~100k deaths Lancet.
Orangutan: -50% habitat in 16 years.
Success cases: PPCDAm 80% cut, Costa Rica PES 21%→60%, soy moratorium 70% cut.
EU Deforestation Regulation 2024-25 covers ~50% of Brazil + Indonesia commodity markets.

How it’s examined

Paper 2 Section C (Fragile Environments + Climate Change global issue option) — short-answer questions on naming impacts, defining deforestation, listing 3 categories.
Paper 2 — 4-6 mark questions describing impacts in one named case (Amazon or palm oil).
Paper 2 — 8-10 mark essay-style: 'Evaluate the relative significance of impacts' OR 'Discuss whether deforestation can be stopped' with case studies.
Mark schemes credit: SPECIFIC named cases (Yanomami, orangutan), SPECIFIC figures (5.5m km², 10,000 km²/yr, $33-125tn, 1.7 Gt CO2), SCIENTIFIC sources (Costanza, Gatti, Lovejoy + Nobre, Salati, IPBES, INPE).
Top-band answers evaluate (rank impacts + give reasons + recognise feedback loops + cite success cases like PPCDAm + Costa Rica PES + soy moratorium).
Common examiner complaint: only environmental impacts covered; only Amazon used; no figures; assuming defeatism (no success cases).

Sources: Pearson Edexcel International GCSE Geography (4GE1) Specification — Issue 4, February 2026, Topic 7 spec 7.2b; INPE PRODES — Brazil Amazon deforestation monitoring; Gatti et al. (2021) — Amazon as net carbon source. Nature 595; Lovejoy + Nobre (2018) — Amazon tipping point. Science Advances 4; Salati (1979) — Amazon rainfall recycling. Water Resources Research; Costanza et al. (1997, 2014) — Ecosystem services valuation; IPBES Global Assessment Report on Biodiversity (2019); FAO Global Forest Resources Assessment 2020; Global Witness — Defending Tomorrow report (activist killings); Lancet (2016) — Indonesian fires + premature mortality; World Bank Groundswell Report (climate migration projections); Pearson 4GE1 Examiner Reports — Paper 2 Section C. Last reviewed 2026-06-03.

Take this whole topic with you

Step-by-step worked examples — Impacts of Deforestation - social, economic and environmental

Step-by-step solutions to past-paper-style questions on impacts of deforestation - social, economic and environmental, written exactly the way a tutor would explain them at the board.

1Naming the three impact categories
Getting started• AO1
Question
State the THREE main categories of deforestation impacts. [3]
Step-by-step solution
1. Step 1
  Social (1 mark) — impacts on people: displacement, loss of livelihoods, health, culture.
2. Step 2
  Economic (1 mark) — impacts on money + jobs: short-term timber/cattle/soy gains vs long-term ecosystem-service losses.
3. Step 3
  Environmental (1 mark) — impacts on nature: CO2 release, biodiversity loss, soil erosion, reduced rainfall.
Answer
Social (people: displacement, livelihoods); economic (money + jobs: short-term gains vs long-term losses); environmental (nature: CO2, biodiversity, soil, rainfall).
Examiner tip
Pearson 4GE1 mark schemes for 7.2b explicitly use SOCIAL / ECONOMIC / ENVIRONMENTAL. Memorise this triple.
2Amazon key statistics
Getting started• AO1
Question
State FOUR key statistics about Amazon deforestation. [4]
Step-by-step solution
1. Step 1
  Size: ~5.5 million km² total Amazon rainforest [1 mark].
2. Step 2
  Loss rate: ~10,000 km²/yr 2020s (INPE PRODES satellite data) [1 mark].
3. Step 3
  Cumulative loss: ~17% of original Amazon already cleared (~870,000 km², roughly equal to France + UK combined) [1 mark].
4. Step 4
  Tipping point: scientists warn ~20-25% loss triggers savannisation (Lovejoy + Nobre 2018) [1 mark].
Answer
~5.5m km² total; ~10,000 km²/yr loss in 2020s (INPE); ~17% already cleared; 20-25% loss = savannisation tipping point.
Examiner tip
Quoting INPE + Lovejoy/Nobre = top-band specificity. Pearson mark schemes credit specific figures + sources.
3Social impacts of Amazon deforestation
Building confidence• AO2
Question
Describe TWO social impacts of Amazon deforestation. [4]
Step-by-step solution
1. Step 1
  Indigenous displacement (1 mark): ~305 indigenous groups in Brazilian Amazon (~900,000 people total). Yanomami (~30,000 people) faced ~20,000 illegal gold miners 2019-23 (Bolsonaro era) — disease, malnutrition, mercury poisoning. Lula declared health emergency Jan 2023.
2. Step 2
  Detail (1 mark): Forced from ancestral land; loss of cultural heritage + traditional knowledge; over 400 environmental + indigenous activists killed Brazil 2002-22 (Global Witness).
3. Step 3
  Loss of medicinal plants (1 mark): Amazon contains source plants for ~25% of pharmaceutical ingredients (NCI estimate); deforestation destroys species before they're catalogued — Pacific yew/Taxol cancer-drug precedent.
4. Step 4
  Detail (1 mark): Disproportionately affects future health + livelihoods globally — particularly indigenous communities whose knowledge of plant uses is also lost.
Answer
Indigenous displacement (Yanomami 30k faced 20k illegal miners 2019-23; Bolsonaro era; mercury poisoning; Lula health emergency 2023). Loss of medicinal plants (~25% of pharma ingredients sourced from Amazon — destroyed faster than catalogued, e.g. Taxol cancer drug from Pacific yew tree precedent).
Examiner tip
Named cases (Yanomami) + figures (20k miners, 25% pharma) + named actors (Bolsonaro vs Lula 2023) = top-band specificity.
4Economic short-term vs long-term tension
Building confidence• AO2, AO3
Question
Explain the ECONOMIC tension between short-term + long-term impacts of deforestation. [4]
Step-by-step solution
1. Step 1
  Short-term gains (1 mark): Brazil cattle exports ~ $10bn/yr; soy exports ~$ 50bn/yr; logging illegal + legal ~$1bn/yr — provide jobs + GDP for poor regions of Amazon states.
2. Step 2
  Detail (1 mark): These benefit a narrow group (ranchers + agribusiness); ~300m+ Brazilian cattle herd; soy expansion drives further clearance.
3. Step 3
  Long-term losses (1 mark): Ecosystem services valued $33tn-125tn globally (Costanza 1997, 2014) — rainforests provide ~$ 5-50,000/ha/yr in carbon, water, biodiversity. Amazon recycles ~50% of own rainfall (Salati 1979) — deforestation reduces regional rainfall by ~20-30%.
4. Step 4
  Detail (1 mark): Agribusiness ultimately damaged — São Paulo + Rio depend on Amazon-derived rainfall; Brazilian soy yields could drop 10-20% if Amazon tipping point crossed. Insurance + climate-disaster costs rising globally.
Answer
Short-term gains: Brazil cattle ~ $10bn/yr + soy ~$ 50bn/yr (narrow group, big GDP). Long-term losses: $33-125tn ecosystem services lost (Costanza); Amazon recycles ~50% rainfall (Salati) so deforestation reduces rainfall ~20-30%; agribusiness itself damaged — soy yields could drop 10-20% if tipping point crossed.
Examiner tip
Naming Costanza + Salati = top-band evidence. Quantifying the SELF-DAMAGING irony of agribusiness destroying its rainfall scores AO3 marks.
5Environmental impacts including tipping point
Stretch• AO2
Question
Describe FOUR environmental impacts of Amazon deforestation. [6]
Step-by-step solution
1. Step 1
  CO2 release (1-2 marks): Amazon became net carbon SOURCE in 2020s (Gatti et al. Nature 2021) — was sink. ~140-200 GtC stored in Amazon biomass + soils; deforestation releases ~0.5 GtC/yr direct + fires (2019 Amazon fires ~906 million tonnes CO2).
2. Step 2
  Biodiversity loss (1 mark): Amazon = ~10% of global species; ~2.5m insect species; jaguar, harpy eagle, river dolphin threatened. IPBES warns ~1m species at risk globally; Amazon is single largest biodiversity reservoir.
3. Step 3
  Soil erosion + nutrient loss (1 mark): Rainforest soils thin + nutrient-poor; once cleared, tropical rain erodes topsoil (~50 t/ha/yr); pastures degrade within ~5-10 years; abandoned cattle ranches don't regenerate.
4. Step 4
  Reduced regional rainfall + savannisation tipping point (1-2 marks): Amazon recycles ~50% of own rainfall via evapotranspiration (Salati); deforestation reduces rainfall regionally ~20-30%; if loss exceeds 20-25%, Amazon tips to drier savanna ecosystem (Lovejoy + Nobre 2018) — irreversible on human timescales.
Answer
CO2 release (Amazon now net carbon source 2020s — Gatti Nature 2021; 2019 fires 906 Mt CO2). Biodiversity loss (Amazon = ~10% global species; IPBES ~1m species at risk). Soil erosion + nutrient loss (~50 t/ha/yr; pastures degrade in 5-10 years). Reduced rainfall + savannisation tipping point (Salati ~50% recycled; 20-25% loss triggers irreversible savannisation — Lovejoy + Nobre 2018).
Examiner tip
Named scientific sources (Gatti 2021, Salati 1979, Lovejoy + Nobre 2018) elevate to top band. Recognising the FEEDBACK LOOP + irreversibility scores AO3.
6Southeast Asia palm oil case
Stretch• AO2, AO3
Question
Explain the impacts of deforestation in Southeast Asia using palm oil as an example. [6]
Step-by-step solution
1. Step 1
  Scale (1 mark): Palm oil plantations cover ~13m ha in Indonesia + Malaysia (~85% of global palm oil); Sumatra + Borneo most affected; ~24m ha lost in Indonesia since 1990 (FAO).
2. Step 2
  Environmental (1-2 marks): Orangutan (Sumatran ~14,000 + Bornean ~104,000) lost ~50% habitat in 16 years; ~25 Sumatran tigers killed/yr; 2015 Indonesian fires (peatland burning) released ~1.7 Gt CO2 (more than US annual emissions); haze drifted to Singapore + Malaysia.
3. Step 3
  Economic (1 mark): Palm oil = ~$45bn/yr Indonesian exports; ~16m direct jobs; cheap edible oil in global food (Nutella, soaps); high yield (3.7 t/ha vs soy 0.6 t/ha).
4. Step 4
  Social (1 mark): Indigenous Dayak displaced in Borneo; land conflicts; child labour reports; respiratory disease ~100,000 premature deaths Indonesia 2015 fires (Lancet).
5. Step 5
  Mitigation (1 mark): RSPO (Roundtable Sustainable Palm Oil) certification ~20% of market; Indonesia palm oil moratorium 2018-21 (let lapse); EU Deforestation Regulation 2024-25 bans imports linked to deforestation post-2020.
Answer
Indonesia + Malaysia palm oil ~13m ha (~85% global supply); orangutan habitat loss ~50% in 16 yrs; 2015 fires ~1.7 Gt CO2 (peatland burning, ~100k premature deaths Lancet); ~$45bn/yr Indonesian exports + ~16m jobs; Dayak displaced; RSPO ~20% certified + EU Deforestation Reg 2024-25 to drive compliance.
Examiner tip
Top-band answers bring in cross-region case studies (not just Amazon) + recent policy (EU Deforestation Regulation 2024-25). Quoting the Lancet 2015 fires study = sophistication.

Model Answers — Impacts of Deforestation - social, economic and environmental

High-scoring sample answers for impacts of deforestation - social, economic and environmental on the Cambridge IGCSE paper, with examiner-style notes mapping each response to the mark scheme and assessment objectives.

Question 1
2 marks
[EASY] Define the term 'deforestation'. [2]
Model answer
Deforestation is the permanent removal or clearance of forest cover to enable other land uses — most commonly cattle ranching, soy + palm oil cultivation, logging, mining or urban expansion [1 mark]. It involves the destruction of trees and is typically measured by area cleared per year using satellite monitoring (e.g. INPE PRODES tracks ~10,000 km²/yr in the Brazilian Amazon in the 2020s) [1 mark].
Why this scores
Mark scheme: 1 mark for 'permanent removal/clearance of forest'; 1 mark for explaining purpose (other land uses) OR quantifying with a named case (e.g. Amazon ~10,000 km²/yr via INPE).
Question 2
3 marks
[EASY] State THREE impacts of deforestation, one from each of: social, economic and environmental. [3]
Model answer
Social — Indigenous communities displaced from ancestral land; Yanomami people (~30,000) of the Brazilian Amazon faced over 20,000 illegal gold miners during 2019-23 [1 mark].

Economic — Loss of ecosystem services valued at $33tn-125tn globally (Costanza 1997/2014) — long-term losses far outweigh short-term cattle + soy gains [1 mark].

Environmental — CO2 release; Amazon became a net carbon source in the 2020s rather than a sink (Gatti et al. Nature 2021), accelerating climate change [1 mark].
Why this scores
Mark scheme: 1 mark for each correctly categorised impact; must include AT LEAST one example from each category. Vague 'people lose homes' loses marks unless specific.
Question 3
4 marks
[MEDIUM] Describe the impacts of deforestation in the Amazon rainforest. [4]
Model answer
The Amazon rainforest (~5.5 million km², losing ~10,000 km²/yr in the 2020s per INPE PRODES data) faces serious impacts across all three categories.

Social. Indigenous groups have been heavily affected — particularly the Yanomami (~30,000 people), where ~20,000 illegal gold miners during 2019-23 caused malnutrition, mercury poisoning and disease outbreaks; the Lula government declared a health emergency in January 2023 [1 mark].

Economic. Short-term gains from cattle (~ $10bn/yr Brazilian beef exports) and soy (~$ 50bn/yr) benefit agribusiness but the long-term losses are far greater — ecosystem services are valued at $33tn-125tn globally (Costanza), and Brazilian soy yields could fall 10-20% if the Amazon's water-recycling capacity collapses [1 mark].

Environmental — CO2. The Amazon became a net carbon source in the 2020s (Gatti et al. Nature 2021), having previously been a sink; 2019 Amazon fires released ~906 million tonnes of CO2 [1 mark].

Environmental — biodiversity + rainfall. Amazon = ~10% of global species; IPBES reports ~1 million species at risk. The forest recycles ~50% of its own rainfall (Salati 1979); deforestation reduces regional rainfall by ~20-30%, threatening the 20-25% tipping point (Lovejoy + Nobre 2018) beyond which the Amazon tips to a drier savanna [1 mark].
Why this scores
Mark scheme: 1 mark for SOCIAL with named indigenous group; 1 mark for ECONOMIC with figure; 1 mark for ENVIRONMENTAL CO2 with figure; 1 mark for biodiversity OR rainfall with figure. Top-band needs at least 4 named figures/sources.
Question 4
4 marks
[MEDIUM] Describe ONE social, ONE economic AND ONE environmental impact of deforestation. [4]
Model answer
Social impact — indigenous displacement. In the Brazilian Amazon, ~305 indigenous groups (~900,000 people) live in the forest. The Yanomami (~30,000) were displaced by ~20,000 illegal gold miners during 2019-23 (Bolsonaro era), suffering disease, malnutrition and mercury poisoning. Over 400 indigenous + environmental activists were killed in Brazil 2002-22 (Global Witness) [1 mark; +1 for figure or named case].

Economic impact — short-term gains vs long-term losses. Brazil earns ~ $10bn/yr from cattle exports + ~$ 50bn/yr from soy, but ecosystem services from the Amazon are valued at $33tn-125tn globally (Costanza 1997, 2014). Brazilian agribusiness itself depends on Amazon-recycled rainfall — soy yields could fall 10-20% if the tipping point is crossed [1 mark].

Environmental impact — CO2 release + biodiversity loss. The Amazon became a net carbon source in the 2020s (Gatti et al. Nature 2021); 2019 fires released ~906 Mt CO2. The Amazon contains ~10% of global species; IPBES warns ~1 million species are at risk globally. The 20-25% deforestation tipping point (Lovejoy + Nobre 2018) would trigger irreversible savannisation [1 mark].
Why this scores
Mark scheme: 1 mark for SOCIAL with specifics; 1 mark for ECONOMIC with specifics; 1 mark for ENVIRONMENTAL with specifics; 1 mark for clear category labelling + figures from all three.
Question 5
6 marks
[HARD] Evaluate the relative significance of the social, economic and environmental impacts of deforestation. [6]
Model answer
Deforestation produces serious impacts in all three categories — but the ENVIRONMENTAL impacts are the most significant because they are GLOBAL, IRREVERSIBLE and create feedback loops affecting the other two categories.

Social — significant for affected groups, but localised. Indigenous displacement (e.g. Yanomami ~30,000 vs ~20,000 illegal miners 2019-23) is devastating for those affected, and loss of medicinal-plant knowledge (Amazon = ~25% pharma ingredient source) has global health implications. But the direct human impact is localised — most of the world's population doesn't experience deforestation directly [1-2 marks].

Economic — paradoxically self-damaging. Short-term gains (~ $10bn/yr cattle, ~$ 50bn/yr soy in Brazil) benefit a narrow group of agribusiness elites. Long-term losses far exceed gains: Costanza values ecosystem services at $33tn-125tn globally. Importantly, agribusiness is ULTIMATELY damaged — Brazilian soy yields could fall 10-20% if the Amazon's ~50% rainfall recycling (Salati) collapses. This is the strongest argument against deforestation in pure GDP terms [1-2 marks].

Environmental — most significant. Three reasons: (1) GLOBAL: CO2 release (Amazon now net carbon source 2020s, Gatti 2021; ~906 Mt CO2 from 2019 fires) accelerates climate change affecting 8 billion people. (2) IRREVERSIBLE: 20-25% deforestation tipping point (Lovejoy + Nobre 2018) flips Amazon to savanna — recovery would take thousands of years. (3) FEEDBACK LOOPS: less forest → less rainfall → more drought → more fires → more loss. Biodiversity loss (~1m species at risk per IPBES) cannot be undone [2 marks].

Judgement. Environmental impacts are most significant because they CONTAIN the social + economic impacts within them — climate change ultimately drives displacement (~143m climate migrants by 2050 per World Bank) and undermines agribusiness. Top policy response: focus on environmental targets (Brazil PPCDAm 2004 reduced deforestation 80% by 2012) — these deliver social + economic co-benefits [1 mark].
Why this scores
Mark scheme: 1-2 marks for social with figure; 1-2 marks for economic with figure; 2 marks for environmental significance (must give 2+ reasons); 1 mark for judgement linking categories. Top-band requires explicit ranking + reasoning.
Question 6
6 marks
[HARD] Compare the impacts of deforestation in the Amazon and Southeast Asia. [6]
Model answer
Both regions show all three impact categories, but the scale, drivers, and dominant impacts differ.

Drivers compared. Amazon: ~80% deforestation for cattle (~300m+ Brazilian herd); ~10% for soy. Southeast Asia: dominantly PALM OIL (Indonesia + Malaysia ~13m ha, ~85% global supply) + timber + paper. Amazon drivers are more concentrated (a few major commodities), SE Asia more diverse [1 mark].

Environmental. Amazon faces savannisation tipping point at 20-25% loss (Lovejoy + Nobre); now net carbon source 2020s (Gatti 2021). SE Asia: 2015 Indonesia peatland fires released ~1.7 Gt CO2 — more than US annual emissions — because peatlands store far more carbon per ha. Both face biodiversity catastrophe: Amazon jaguar/harpy eagle/river dolphin; SE Asia orangutan (~50% Sumatran habitat lost in 16 years), Sumatran tiger (~400 left). SE Asia per-ha CO2 release HIGHER due to peat; Amazon TOTAL carbon stock larger [2 marks].

Social. Amazon: Yanomami (~30,000) + ~305 indigenous groups displaced; 400+ activists killed 2002-22 (Global Witness). SE Asia: Indigenous Dayak displaced in Borneo; child labour reports; 2015 fires caused ~100,000 premature respiratory deaths in Indonesia (Lancet 2016). SE Asia has had LARGER direct human health impact from fires due to dense neighbouring populations [1-2 marks].

Economic. Both regions earn major export revenue — Brazil ~ $60bn cattle + soy; Indonesia ~$ 45bn palm oil + ~16m direct jobs. Palm oil far higher yield than soy (3.7 vs 0.6 t/ha) so demand is harder to substitute. Both face EU Deforestation Regulation 2024-25 export restrictions [1 mark].

Policy + governance. Amazon: Brazil PPCDAm (2004) cut deforestation 80% by 2012; reversed under Bolsonaro 2019-22; Lula cut deforestation 50% in 2023. SE Asia: RSPO certification (~20% global market); Indonesia 2018-21 palm oil moratorium (lapsed). Both vulnerable to political reversal [1 mark].

Judgement. Amazon faces greater LONG-TERM environmental risk (tipping point); SE Asia faces greater IMMEDIATE health risk (fires + haze). Both require sustained governance + global demand-side pressure (EU Deforestation Regulation) [no extra mark — conclusion].
Why this scores
Mark scheme: 1 mark for drivers compared; 2 marks for environmental contrast (peat vs tipping point); 1-2 marks for social contrast with figures; 1 mark for economic compare; 1 mark for policy + governance. Top band requires explicit COMPARATIVE language ('whereas', 'in contrast').
Question 7
8 marks
[CHALLENGE] 'The economic gains from deforestation are temporary, but the environmental damage is permanent.' Discuss using TWO named case studies. [8]
Model answer
This statement captures a fundamental asymmetry in deforestation. Examining the Amazon and the Indonesian palm oil case reveals strong support — but with important nuances around recoverability and equity.

Case 1 — Amazon (~10,000 km²/yr 2020s). Brazil earns ~ $10bn/yr from cattle exports and ~$ 50bn/yr from soy — substantial and growing. But these gains accrue to a narrow agribusiness elite (e.g. JBS, Cargill); rural Amazon states remain among Brazil's poorest. Crucially, the economic gains are TEMPORARY in two senses: (a) cleared cattle pastures degrade within 5-10 years and are abandoned (~24% of Brazilian Amazon already degraded); (b) Brazilian soy yields could fall 10-20% if the Amazon's ~50% rainfall recycling (Salati 1979) collapses past the 20-25% deforestation tipping point (Lovejoy + Nobre 2018). Environmental damage is largely PERMANENT: Amazon became a net carbon source in the 2020s (Gatti et al. Nature 2021); savannisation, once triggered, would take thousands of years to reverse; species extinctions are immediate and irreversible (IPBES ~1m species at risk). 2019 fires alone released ~906 Mt CO2 — a permanent atmospheric addition [3 marks].

Case 2 — Indonesia + Malaysia palm oil (~13m ha, ~85% global supply). Palm oil is hugely valuable: ~$45bn/yr Indonesian exports + ~16m direct jobs; cheapest edible oil with the highest yield per ha (3.7 t/ha vs soy 0.6). Yet the costs are even more starkly asymmetric — 2015 Indonesian peatland fires released ~1.7 Gt CO2 (more than US annual emissions); ~100,000 premature respiratory deaths in Indonesia (Lancet 2016); orangutan habitat down ~50% in 16 years. Peatlands take centuries to form; once burned, carbon is permanently released. Orangutan extinctions cannot be undone [3 marks].

Counter-argument — partial recoverability. Some reforestation has occurred (Costa Rica forest cover 21% in 1980s → 60% today via PES); Brazil reduced Amazon deforestation 80% (2004-12) under PPCDAm and again 50% in 2023 under Lula. So damage is not entirely irreversible — but only IF policy is sustained. Tipping points, however, ARE irreversible [1 mark].

Judgement. The statement is broadly correct: economic gains are temporary (degrade soil, harm own rainfall, benefit narrow elite) while environmental damage approaches permanence (CO2 in atmosphere, species extinction, tipping points). The asymmetry justifies prioritising forest protection over short-term commodity revenue — and is recognised in policy (EU Deforestation Regulation 2024-25, REDD+ payments, Brazil's commodity moratoria). The 'temporary vs permanent' framing should drive future decisions [1 mark].
Why this scores
Mark scheme: 3 marks for Amazon case with figures; 3 marks for Indonesia palm oil case with figures; 1 mark for counter-argument (partial recovery); 1 mark for judgement supporting the statement. Top band requires named scientific sources + recognition of asymmetry + policy implications.
Question 8
10 marks
[EXTENDED] 'Deforestation cannot be stopped because the economic incentives are too strong.' Critically evaluate this statement using case studies. [10]
Model answer
The statement reflects a common pessimistic view — but the evidence is more complex. Deforestation HAS been slowed and even reversed in some cases when policy + governance + market pressure align. The economic incentives are powerful but NOT immutable.

Why the statement seems true — strong economic incentives. Amazon: Brazil earns ~ $10bn/yr cattle + ~$ 50bn/yr soy exports; ~300m+ cattle; agribusiness lobby powerful in Congress (~40% bancada ruralista). Indonesia + Malaysia: palm oil ~$45bn/yr + ~16m jobs; only crop with 3.7 t/ha yield. Congo: rural poverty drives fuelwood demand (~2bn people globally use wood for cooking). When commodity prices rise, deforestation surges — 2008 soy price spike + 2019-22 Bolsonaro deregulation pushed Amazon loss to ~13,000 km²/yr [2 marks].

Evidence FOR partial defeatism — failures. Bolsonaro era 2019-22: Amazon deforestation rose ~75%; INPE budget cut; environmental enforcement gutted. Indonesia moratorium 2018-21 was let lapse 2021. RSPO certification covers only ~20% of global palm oil market. ~400 Brazilian environmental activists killed 2002-22 (Global Witness). Climate-driven drought may push Amazon past tipping point even with reduced clearance. International agreements (NY Declaration on Forests 2014) have largely failed to halt loss [2 marks].

Evidence AGAINST defeatism — major successes show deforestation CAN be stopped. Three powerful cases: (1) Brazil PPCDAm (Plan to Prevent + Control Amazon Deforestation, 2004 under Lula's first term) cut Amazon loss 80% by 2012 (peak 27,000 km²/yr → 4,500); achieved via real-time satellite monitoring (DETER), fines, supply-chain restrictions, indigenous land demarcation. Reversed 2019-22 under Bolsonaro — but quickly reversed AGAIN: Lula's 2023 government cut deforestation 50%, restored IBAMA enforcement. (2) Costa Rica went from forest cover 21% in 1980s to ~60% today via Payments for Ecosystem Services (PES) — landowners paid ~ $60/ha/yr to keep forest. Ecotourism now ~$ 4bn/yr industry. (3) Soy moratorium (2006) — major traders (Cargill, Bunge) refused to buy soy from newly-cleared Amazon land, cutting soy-driven deforestation ~70% [3 marks].

Demand-side pressure transforming incentives. EU Deforestation Regulation 2024-25 bans imports of beef, soy, palm oil, cocoa, coffee, rubber, wood linked to post-2020 deforestation — affecting ~50% of Brazilian + Indonesian commodity markets. Major TNCs (Unilever, Nestlé) have zero-deforestation commitments. Carbon markets price forest conservation (e.g. Verra credits). UK + USA + Canada signed Forest, Agriculture + Commodity Trade Roadmap 2021. Economic incentives are being RESHAPED [2 marks].

Judgement. The statement is partially true (economic incentives are real + powerful) but ultimately WRONG as policy. Deforestation HAS been stopped in specific contexts: Brazil 2004-12, Costa Rica long-term, soy moratorium. Success requires (a) strong governance + monitoring (DETER satellites), (b) demand-side pressure (EU Reg, soy moratorium), (c) economic alternatives (PES, ecotourism), and (d) indigenous land rights (Brazil ~14% land). Failure (Bolsonaro era) was political, not inevitable. The challenge is making success DURABLE across political cycles. Realistic optimism, not defeatism, is justified by the evidence [1 mark].
Why this scores
Mark scheme: 2 marks for economic incentives outlined; 2 marks for partial-failure evidence; 3 marks for major success cases (PPCDAm + Costa Rica + soy moratorium); 2 marks for demand-side reshaping; 1 mark for nuanced judgement. Top band requires recognition that policy CAN work + concrete proof + clear conclusion supported by data.

Key Definitions and Keywords — Impacts of Deforestation - social, economic and environmental

Definitions to memorise and the exact keywords mark schemes credit for impacts of deforestation - social, economic and environmental answers — sharpened from recent examiner reports for the 2026 Cambridge IGCSE sitting.

Deforestation
Examiner keyword
Permanent removal or clearance of forest cover for other land uses — cattle, soy, palm oil, logging, mining, urban expansion.
Ecosystem services
Examiner keyword
Benefits humans get from ecosystems — provisioning (food, water, timber, medicines), regulating (climate, water purification, pollination), cultural (recreation, spiritual), supporting (nutrient cycling, soil formation). Costanza valued global services at $33tn-125tn.
Savannisation tipping point
Examiner keyword
Threshold (Lovejoy + Nobre 2018) of 20-25% Amazon deforestation beyond which the rainforest tips to drier savanna ecosystem — irreversible on human timescales.
Carbon sink vs source
Sink = absorbs more CO2 than it releases (intact Amazon, oceans). Source = releases more than absorbs. Amazon became a net carbon SOURCE in the 2020s (Gatti et al. Nature 2021).
Amazon rainfall recycling
Salati (1979) showed Amazon recycles ~50% of own rainfall via evapotranspiration — deforestation reduces regional rainfall by ~20-30%.
Biodiversity
Variety of life — species, genes, ecosystems. Amazon contains ~10% of global species. IPBES warns ~1m species at risk globally.
Indigenous displacement
Forced removal of indigenous peoples from ancestral land — Yanomami (~30,000) faced ~20,000 illegal miners 2019-23; 400+ activists killed in Brazil 2002-22 (Global Witness).
INPE PRODES
Brazil's National Institute for Space Research satellite monitoring system tracking Amazon deforestation since 1988 — ~10,000 km²/yr 2020s.
PPCDAm
Plan to Prevent + Control Amazon Deforestation (Brazil 2004) — cut deforestation 80% by 2012 via satellite monitoring (DETER), fines, supply-chain pressure.
Soy Moratorium
2006 voluntary agreement — Cargill, Bunge + other major traders refused to buy soy from newly-cleared Amazon land; cut soy-driven deforestation ~70%.
REDD+
Reducing Emissions from Deforestation + Degradation — UN-FCCC programme; $5bn+ pledged since 2008 (e.g. Norway-Brazil Amazon Fund$ 1bn).
RSPO
Roundtable on Sustainable Palm Oil — certification scheme covering ~20% of global palm oil market.
EU Deforestation Regulation
2024-25 regulation banning EU imports of beef, soy, palm oil, cocoa, coffee, rubber, wood linked to deforestation post-2020 — affects ~50% of Brazilian + Indonesian commodity markets.
Payments for Ecosystem Services (PES)
Government or NGO payments to landowners for maintaining forest cover — e.g. Costa Rica ~$60/ha/yr; tripled forest cover 21% → 60% since 1980s.

Common Mistakes and Misconceptions — Impacts of Deforestation - social, economic and environmental

The traps other students keep falling into on impacts of deforestation - social, economic and environmental questions — taken from recent Cambridge IGCSE examiner reports and mark schemes — and how to avoid them.

✕Vague impacts without figures or named cases
Pearson 4GE1 Examiner Reports — Paper 2 Section C
Why it happens
Students learn 'CO2 is released' or 'trees are cut down' without committing specific data to memory.
How to avoid it
Memorise the Amazon spine: 5.5m km² total / 10,000 km²/yr 2020s / 17% lost / 20-25% tipping point / $33-125tn ecosystem services / now carbon source (Gatti 2021).
✕Focusing only on environmental impacts, ignoring social + economic
Pearson 4GE1 Examiner Reports — Paper 2 Section C
Why it happens
Environmental impacts are most discussed in media + textbooks; students forget the spec requires all three categories.
How to avoid it
Always cover SOCIAL (indigenous, livelihoods) + ECONOMIC (short vs long-term) + ENVIRONMENTAL (CO2, biodiversity, rainfall) — Pearson 7.2b explicitly names all three.
✕Using only the Amazon as case study
Pearson 4GE1 Examiner Reports — Paper 2 Section C
Why it happens
Amazon dominates media coverage; students don't memorise other regions.
How to avoid it
Build a 2-case spine: Amazon (cattle/soy/savannisation) + Southeast Asia palm oil (peatland fires/orangutan/2015 ~1.7 Gt CO2). Comparison + contrast scores AO3 marks.
✕Treating economic gains as if they were permanent + positive
Pearson 4GE1 Examiner Reports — Paper 2 Section C
Why it happens
$10bn/yr cattle exports sounds impressive; the tipping-point self-damage argument is harder to grasp.
How to avoid it
Always pair short-term gains with long-term losses: ecosystem services $33-125tn (Costanza); soy yields could fall 10-20% past tipping point (own-rainfall feedback per Salati).
✕Missing the feedback loops + tipping point
Pearson 4GE1 Examiner Reports — Paper 2 Section C
Why it happens
Feedback loops are conceptually demanding — easier to list impacts as isolated points.
How to avoid it
Memorise the loop: less forest → less rainfall (Salati ~50% recycling) → more drought → more fires → more loss → tipping at 20-25% (Lovejoy + Nobre 2018) → irreversible savannisation.
✕Assuming deforestation cannot be stopped
Pearson 4GE1 Examiner Reports — Paper 2 Section C
Why it happens
Media pessimism + Bolsonaro-era headlines; students miss success cases.
How to avoid it
Memorise 3 success cases: Brazil PPCDAm 2004-12 (80% reduction); Costa Rica PES (21%→60% forest); soy moratorium 2006 (70% reduction). Plus EU Deforestation Reg 2024-25.

Impacts of Deforestation - social, economic and environmental

Detailed Study Notes

At a glance

What you’ll learn

Quick recap

Memorise this

How it’s examined

Take this whole topic with you

1Naming the three impact categories

2Amazon key statistics

3Social impacts of Amazon deforestation

4Economic short-term vs long-term tension

5Environmental impacts including tipping point

6Southeast Asia palm oil case

Deforestation

Ecosystem services

Savannisation tipping point

Carbon sink vs source

Amazon rainfall recycling

Biodiversity

Indigenous displacement

INPE PRODES

PPCDAm

Soy Moratorium

REDD+

RSPO

EU Deforestation Regulation

Payments for Ecosystem Services (PES)

✕Vague impacts without figures or named cases

✕Focusing only on environmental impacts, ignoring social + economic

✕Using only the Amazon as case study

✕Treating economic gains as if they were permanent + positive

✕Missing the feedback loops + tipping point

✕Assuming deforestation cannot be stopped