Fiche de révision : Arctic and Antarctic Climate and Governance

📋 Course Outline

1. Arctic Climate Change
2. Greenhouse Gases and Black Carbon
3. Ice-Albedo Feedback and Permafrost
4. Arctic Ecosystems and Pollution
5. Monsoon Disruption and Ocean Circulation
6. Human Security in the Arctic
7. Arctic Development and Resource Dependence
8. Antarctic Marine Protected Areas
9. South American Antarctic Claims
10. Chile and Brazil in Antarctica
11. Antarctic Cooperation and Tourism
12. Antarctic Pollution and Invasive Species

📖 1. Arctic Climate Change

🔑 Key Concepts & Definitions

• Greenhouse effect : Greenhouse effect is the warming process strengthened when greenhouse gases trap part of Earth’s outgoing heat and alter the natural climate cycle.
• Short-lived climate pollutants : Short-lived climate pollutants are atmospheric agents with brief lifetimes that still strongly affect climate during their persistence, such as methane and black carbon.
• Ice-albedo feedback : Ice-albedo feedback is a self-amplifying loop where loss of reflective ice and snow increases absorbed energy, raising temperatures further.
• Permafrost : Permafrost is ground that stays below 0°C for at least 2 years and can act as a long-term carbon storage.
• Rapid Arctic warming : Rapid Arctic warming is the observed pattern that the Arctic warms faster than the global average, especially after 2005.

📝 Essential Points

• Current global CO2 concentration has already exceeded 400 ppm, exceeding about 400 molecules of CO2 per 1 million air molecules.
• Carbon dioxide makes up about 80% of total greenhouse gas emissions, while methane and black carbon have lifetimes of about 10 years and 1 week.
• Black carbon consists of small particles that can warm more in winter than in other seasons, because dark particles attract heat and affect both outgoing and incoming radiation.
• Sea level rise is projected to reach about 1 m or more by around 2100 due to glacier melt above land-base territory.
• Permafrost thaw can form thermokarst landscapes, and permafrost stores about 4× more carbon than all human activities combined.

💡 Memory Hook

Ice-albedo: less reflection → more absorbed heat → Arctic warming accelerates (then more ice loss).

📖 2. Greenhouse Gases and Black Carbon

🔑 Key Concepts & Definitions

• Greenhouse gases : Greenhouse gases are atmospheric gases that strengthen the greenhouse effect by trapping heat and altering the natural climate cycle.
• Carbon dioxide concentration : Carbon dioxide concentration is the atmospheric amount of CO2 measured in parts per million (ppm), used to track climate forcing levels.
• Black carbon : Black carbon is a soot-like particle that warms climate by attracting heat and by absorbing incoming solar radiation.
• Kyoto Protocol : The Kyoto Protocol is a 1997 international agreement that entered into force in 2005 to legally require emission reductions.

📝 Essential Points

• Current global CO2 concentration has already exceeded 400 ppm.
• CO2 accounts for about 80% of total greenhouse-gas emissions.
• Methane has an atmospheric lifetime of about 10 years, while black carbon’s is about 1 week.
• The Kyoto Protocol was signed in 1997 and entered into force in 2005 as the first global legal effort to reduce emissions.
• In the Arctic Svalbard region, black carbon concentrations peak in April and December due mainly to heating activities.
• Black carbon comes from major sources including Russia (49%) and Greenland (28%) in the Arctic region.

💡 Memory Hook

Black carbon is the fast warmer: 1-week lifetime (vs methane at ~10 years).

📖 3. Ice-Albedo Feedback and Permafrost

🔑 Key Concepts & Definitions

• Permafrost thaw : A warming-driven process in which permanently frozen ground melts, triggering environmental and health impacts as stored materials break down.
• Carbon and methane emissions : A release of greenhouse gases from thawing and decomposing Arctic material that can increase atmospheric warming.
• Global warming feedback loop : A self-reinforcing cycle where warming promotes emissions, and those emissions further increase warming.

📝 Essential Points

• Melting sea ice and permafrost thaw are environmental threats linked to stronger global warming feedback effects.
• Thawing permafrost can increase disease risk because pathogens may emerge from previously frozen ground.
• Carbon and methane emitted during thaw strengthen the global warming feedback loop.
• Environmental impacts tied to this warming include extreme events like storms, flooding, and coastal erosion.

💡 Memory Hook

Less ice (lower albedo) → more heat absorbed → more warming → more permafrost thaw → more carbon/methane → still more warming.

📖 4. Arctic Ecosystems and Pollution

🔑 Key Concepts & Definitions

• Ship pollution : Ecosystem-impacting contaminants carried or produced by vessels operating in Arctic waters.
• Aircraft waste : Pollution generated by aircraft in the Arctic, including emissions and waste affecting local environments.
• Wildlife decline : Reduced abundance or health of Arctic animals linked to human activities and environmental stressors.
• Uncontrolled tourism impacts : Environmental harm that can occur when visitor growth outpaces management capacity in the Arctic.

📝 Essential Points

• Uncontrolled Arctic tourism can increase pollution and cause water shortages for local areas.
• Tourism pressure can contribute to wildlife decline in the Arctic environment.
• Ship and aircraft operations add pollution through fossil-fuel use and waste disposal.
• Tourism-related accidents, including cruise ship incidents and oil spills, threaten Arctic marine ecosystems.

💡 Memory Hook

Tourism = Transport (ships/air) → Waste + oil spills → polluted seas and stressed wildlife.

📖 5. Monsoon Disruption and Ocean Circulation

📖 6. Human Security in the Arctic

🔑 Key Concepts & Definitions

• Inuit Nunangat : The Inuit homeland in northern Canada where Inuit suicide rates are reported to be far above the Canadian average.
• Nunavut suicide mortality : A reported indicator of deaths by suicide in Nunavut expressed as deaths per 100,000 people.
• Sami Giellagaldu : A Nordic language institution supported by Sami parliaments to protect and develop Sami languages.
• Sami youth network : A cross-border cooperation network for Sami youth organizations intended to strengthen youth participation and identity.
• Green colonialism : A pattern where climate or environmental projects justify infringing Indigenous land, livelihoods, and cultural rights.

📝 Essential Points

• In Inuit Nunangat, suicide rates are repeatedly reported as 5 to 25 times higher than the Canadian average, with adolescents and young adults identified as most at risk.
• In Nunavut, the suicide mortality rate is 72.2 deaths per 100k and is about 6.6 times higher than Canada’s 10.9 per 100k, while hospitalization due to self-harm is 360.3 per 100k versus 64.9 in Canada.
• Between 2010 and March 26, 2024, 451 Inuit died by suicide in Nunavut, compared with 7 non-Inuit deaths in the same period.
• Nunavut’s 2020-2021 high school graduation rate is 44.9% versus Canada’s 84%, and a 2023-2024 annual report reports a 69% K-12 school attendance rate and 44% overall graduation in 2024.
• In 2024, reported funding cuts included 5M Swedish kronor for Sami language support and €193,000 in Finland, creating concern Sami Giellagaldu could be forced to close within a year.

💡 Memory Hook

Mind, school, language: Inuit/Greenland suicide → weak attendance/graduation → funding pressure on Sami language institutions.

📖 7. Arctic Development and Resource Dependence

🔑 Key Concepts & Definitions

• FPIC : FPIC is the process meant to give indigenous communities meaningful decision-making power about projects affecting their territories and rights.

📝 Essential Points

• Green development can include wind farms, hydropower dams, and critical-mineral development that may displace indigenous territories and disrupt hunting, grazing, and cultural sites.
• In green colonialism situations, FPIC is often ignored or weakened, leaving communities under pressure from governments and corporations without real influence.

💡 Memory Hook

Green projects can still “colonize”: climate action → infrastructure/energy → land and rights loss when FPIC is ignored.

📖 8. Antarctic Marine Protected Areas

🔑 Key Concepts & Definitions

• CCAMLR Conservation Measure 91-04 : A CCAMLR conservation measure that created a framework for establishing MPAs to protect representative marine ecosystems in the CCAMLR area.
• South Orkney Islands Southern Shelf MPA : A CCAMLR-designated Antarctic MPA created in 2009 to provide long-term protection for a representative marine ecosystem.
• Ross Sea Region MPA : A CCAMLR-designated Antarctic MPA created in 2016 for long-term protection of a representative marine ecosystem.
• Conservation Measure 51-07 spatial distribution rule : A CCAMLR rule about how krill fishing is spatially distributed that can affect whether limits are ecologically safe.

📝 Essential Points

• CCAMLR adopted Conservation Measure 91-04 in 2009 to provide a framework for creating Antarctic MPAs within the CCAMLR area.
• Only two official Antarctic MPAs exist under CCAMLR: the South Orkney Islands Southern Shelf MPA (2009) and the Ross Sea Region MPA (2016).
• At the 44th Annual Meeting of CCAMLR (October 2025), members again failed to reach consensus on designating new Antarctic MPAs.
• In 2025 the Antarctic krill fishery reached 620k tons and was closed early around August, before the normal season end in December.
• Members failed to agree on extending the spatial distribution rule linked to Conservation Measure 51-07 due to concern about where catches occur within specific areas.

💡 Memory Hook

MPAs pause on “consensus”: 91-04 sets the framework, but CCAMLR meetings keep blocking new designations.

📖 9. South American Antarctic Claims

🔑 Key Concepts & Definitions

• Antarctic territorial claims : Antarctic territorial claims are sovereignty assertions over parts of Antarctica combined with a stated aim to safeguard those areas.
• Antarctic Treaty Consultative Party status : ATCP status is the Antarctic Treaty role granted to states that participate more directly in treaty decision-making for Antarctica.
• Environmental stewardship in claims : Environmental stewardship in claims is the use of environmental protection commitments to legitimize and guide a country’s Antarctic territorial position.
• Argentine Antarctic governance : Argentine Antarctic governance is the set of institutions and measures Argentina uses to support science, bases, and administration of its claimed area.

📝 Essential Points

• South American states described in the material include Argentina and Chile as asserting sovereignty over portions of Antarctica while also aiming for environmental stewardship.
• 10 South American states joined the Antarctic Treaty, and 6 of them have Antarctic Treaty Consultative Party status: Argentina, Brazil, Chile, Ecuador, Peru, and Uruguay.
• Argentina supports Antarctic science and monitoring and includes part of its claimed Antarctica, since 1904, as legally incorporated into Tierra del Fuego province.
• Chile is highlighted for treating its territorial proximity with cooperative environmental policies and for linking claims to scientific research and stewardship.

💡 Memory Hook

ATCP (South America) = Argentina, Brazil, Chile, Ecuador, Peru, Uruguay—“the six” among the South American states.

📖 10. Chile and Brazil in Antarctica

🔑 Key Concepts & Definitions

• Chile’s Antarctic Act : A Chilean Antarctic law that consolidated Antarctic-related regulations and came into force in March 2021.
• PROCIEN : Chile’s national Antarctic science program organized into lines focused on ecosystem status, thresholds, climate change, and more.
• Frontage theory : A territorial-claim idea that links sovereignty to the country whose non-Antarctic territory lies directly north on the same meridian.
• PROANTAR : Brazil’s Antarctic program launched in 1982, establishing CONANTAR and expanding Brazil’s Antarctic institutional presence.

📝 Essential Points

• Chile links its Antarctic claims with cooperative environmental policies and emphasizes the short distance from Cape Horn to the Antarctic Peninsula.
• Chile’s 2020 Antarctic tourism policy requires Chilean tour operators to participate in IAATO and to manage activities with environmental responsibility and safety.
• Brazil ratified the Antarctic Treaty in 1975 through Law no. 75963 and identified Durval Rosa Borges as the first Brazilian to set foot in Antarctica.
• Brazil’s PROANTAR began in 1982, followed by obtaining consultative party status in 1983 and founding the Comandante Ferraz station in 1984.
• Using frontage theory, Brazil informally proposed a zone of interest between 28°W and 53°W below 60°S latitude.
• Brazil included Antarctica in its national defense policy since the early 2000s, alongside the National Defense Policy revisions in 1996 and 2005.

💡 Memory Hook

Frontage theory is “north-meridian ownership,” and Brazil’s informal zone is 28°W–53°W below 60°S.

📖 11. Antarctic Cooperation and Tourism

🔑 Key Concepts & Definitions

• RAPAL : RAPAL is a Latin American coordination forum for scientific, logistical, and environmental cooperation within the Antarctic Treaty framework.
• IAATO : IAATO is the international association of Antarctic tour operators that provides benchmarks for tourism numbers and operator participation rules.
• COMNAP : COMNAP is a coordinated body within the Antarctic system that supports national programs through logistics and operational collaboration.
• SCAR : SCAR is a scientific committee within the Antarctic Treaty system that organizes international research collaboration.

📝 Essential Points

• Chile established its Antarctic Treaty secretariat in Buenos Aires in 2004.
• Chile incorporated part of Antarctica claimed by Argentina since 1904 into Tierra del Fuego.
• By the 2023/24 season, Antarctic tourism exceeded 122,000 visitors, mainly departing from Tierra del Fuego across the Drake Passage to the Antarctic Peninsula.
• IAATO data shows visitors rose from about 8,000 per year in the 1990s to 124,000 in 2023/24, with projections of 450,000 by 2034.
• Chile’s tourism policy requires operator participation in IAATO and mandates environmental impact assessments for tourism activities.

💡 Memory Hook

RAPAL for Latin America + IAATO for tourists: cooperation plans together, tourism counts together.

📖 12. Antarctic Pollution and Invasive Species

🔑 Key Concepts & Definitions

• Microplastics : Microplastics are small plastic particles found in Antarctic organisms, snow, and ice that can be transported by human activity and ocean currents.
• Gentoo penguin microplastics : Gentoo penguin microplastics are plastic particles detected in gentoo feces, used to show ingestion at an Antarctic food-chain level.
• Alien species records : Alien species records are documented invasion reports used to estimate how many non-native species are established or uncertain in Antarctica.
• Biofouling species : Biofouling species are organisms attached to ship hulls, enabling non-native spread when vessels travel between ports and Antarctic waters.
• Gateway ports : Gateway ports are shipping hubs that connect Antarctic routes to global maritime traffic and increase invasion risk.

📝 Essential Points

• A study identified 378 microplastic particles in gentoo penguin samples, with a mean of 27–25.3 per individual and more small particles than prior findings in feces.
• Microplastics were found in fresh snow samples from Union Glacier and Schanz Glacier, with most particles smaller than 50 µm.
• In Antarctic krill from 26 sampling locations, 77% on average contained microplastics and over 75% of detected items were fibers mainly nylon from fishing gear, ropes, and textiles.
• Confirmed alien species invasion data total 3,066 records, including 2,390 existing invasive species and 676 records that were extinct or uncertain.
• More than 1,500 ports worldwide are connected to the Antarctic region by shipping routes, and common gateway ports include Punta Arenas, Ushuaia, Cape Town, Hobart, and Christchurch.

💡 Memory Hook

Microplastics = snow/ice + penguins/krill; invasions = ships via hull biofouling and gateway ports.

📅 Key Dates

📊 Synthesis Tables

Antarctic MPAs under CCAMLR

⚠️ Common Pitfalls & Confusions

1. Confusing lifetimes: methane lasts about 10 years, while black carbon lasts about 1 week.
2. Thinking the greenhouse effect is only “CO2”: the course stresses methane and black carbon as major greenhouse-related agents too.
3. Mixing up ice-albedo feedback vs sea-level rise: ice-albedo feedback explains more absorbed energy from reduced snow/ice reflectivity, while sea-level rise is linked to glacier melt projected by around 2100.
4. Assuming black carbon peaks are wildfire-driven: in Svalbard, highest concentrations are in April and December mainly due to heating activities.
5. Believing permafrost thaw is just local damage: the material links thaw to thermokarst landscapes, disease risk, and carbon/methane strengthening a global warming feedback loop.
6. Treating tourism as only “environmentally bad”: the course distinguishes pollution, water shortages, wildlife decline, and ship/air fossil-fuel use and waste/oil spill risks.
7. Mixing governance bodies: SCAR and COMNAP advise/coordinate research and logistics within the Antarctic system, while IAATO is industry self-regulation for tourism.

✅ Exam Checklist

1. Define greenhouse effect and explain why short-lived climate pollutants (methane and black carbon) can still strongly affect climate during their atmospheric persistence.
2. State the course figures: current CO2 concentration exceeds 400 ppm and CO2 accounts for about 80% of total greenhouse-gas emissions.
3. Explain the mechanism and key seasonal point of black carbon in the Arctic (attracting heat; Svalbard peaks in April and December due to heating).
4. Describe ice-albedo feedback and connect it to Arctic warming being faster than the global average after 2005.
5. Cover sea level rise and permafrost basics: permafrost stays below 0°C for at least 2 years, thaw can form thermokarst, and permafrost stores about 4x more carbon than all human activities combined.
6. Summarize monsoon disruption logic: Arctic changes can correlate with abrupt tropical monsoon changes and AMOC weakening through increased freshwater from melting glaciers.
7. Explain human security dimensions linked to Arctic change: at minimum environmental security and food/health/economic/community impacts described in the material.
8. Know how Arctic development can become a staple trap: high GRP/resource extraction does not ensure diversification or improved local living standards.
9. Identify Antarctic governance essentials: the Antarctic Treaty (peaceful use; scientific freedom; no new claims) and the key listed agreements under the Antarctic Treaty System including the Madrid Protocol.
10. Explain the CCAMLR MPA situation: 91-04 as the framework, only two official MPAs (South Orkney 2009; Ross Sea 2016), and October 2025 consensus failure on new MPAs.
11. For Antarctic environment, state the course’s three invasion/impact pathways: microplastics (penguins/krill/snow/ice), alien species records, and gateway ports via shipping/biofouling.
12. For South American governance and Chile/Brazil claims, recall the course’s core items: ATCP status list of six states and Chile’s 2020 tourism policy requiring IAATO participation plus Brazil’s PROANTAR timeline and frontage theory zone of interest.