✅ Answer: A) 1 and 3 onlyIndia’s Panchamrit (5 nectar elements) at COP26: 1. Reach 500 GW non-fossil energy by 2030; 2. Meet 50% energy from renewables by 2030; 3. Reduce total projected carbon emissions by 1 billion tonnes by 2030; 4. Reduce emissions intensity by 45% by 2030; 5. Achieve net zero by 2070. Statement 2 is incorrect — India’s net zero target is 2070, not 2050. The 2050 target is for developed countries. India argued developing countries need more time to transition.

✅ Answer: A) The total amount of CO₂ that can be emitted while keeping warming below a specific temperature limitThe Carbon Budget is the total cumulative amount of CO₂ that can be emitted globally while keeping warming below a specific temperature limit (e.g., 1.5°C or 2°C). The remaining carbon budget for 1.5°C is very small — at current emission rates, it will be exhausted in about 6-7 years. This concept is central to climate negotiations. Countries need to rapidly reduce emissions to stay within the carbon budget.

✅ Answer: A) Earth Summit, Rio de Janeiro (1992)The UNFCCC (United Nations Framework Convention on Climate Change) was adopted at the Earth Summit in Rio de Janeiro in 1992. It entered into force in 1994. It has 197 parties (near-universal membership). The Conference of Parties (COP) meets annually. Key milestones: Kyoto Protocol (1997, COP3), Copenhagen Accord (2009, COP15), Paris Agreement (2015, COP21), Glasgow Climate Pact (2021, COP26). UNFCCC Secretariat is in Bonn, Germany.

✅ Answer: A) Developed countries (Annex I countries)The Kyoto Protocol (1997) required only developed countries (Annex I countries) to reduce GHG emissions. Developing countries (including India and China) had no binding targets. This was based on the principle of “Common But Differentiated Responsibilities” (CBDR) — developed countries caused most historical emissions and should take the lead. The USA never ratified Kyoto. The Paris Agreement (2015) applies to all countries through NDCs but with differentiated responsibilities.

✅ Answer: A) All countries share responsibility for climate change, but developed countries bear greater responsibility due to historical emissionsCBDR (Common But Differentiated Responsibilities) recognises that all countries share responsibility for addressing climate change, but developed countries bear greater responsibility because they caused most historical emissions and have greater capacity to act. This principle is enshrined in the UNFCCC (1992) and guides climate negotiations. India strongly advocates CBDR, arguing that developing countries should not be penalised for the emissions of developed countries.

✅ Answer: A) 2008India’s National Action Plan on Climate Change (NAPCC) was launched in 2008. It has 8 national missions: National Solar Mission, Enhanced Energy Efficiency, Sustainable Habitat, Water Mission, Sustaining Himalayan Ecosystem, Green India Mission, Sustainable Agriculture, Strategic Knowledge for Climate Change. The Jawaharlal Nehru National Solar Mission (JNNSM) was the first mission to be operationalised (2010). NAPCC is India’s comprehensive framework for addressing climate change.

✅ Answer: A) Compensation for climate impacts that cannot be adapted to, especially for vulnerable developing countriesThe “Loss and Damage” mechanism addresses climate impacts that cannot be avoided through mitigation or adaptation — such as sea level rise threatening small island states, or extreme weather events. At COP27 (Sharm el-Sheikh, 2022), a historic agreement was reached to establish a Loss and Damage fund for vulnerable developing countries. This was a major victory for developing nations. India supported the Loss and Damage fund as it represents climate justice.

✅ Answer: A) Each country’s self-determined climate action plans submitted to UNFCCCNDCs (Nationally Determined Contributions) are each country’s self-determined climate action plans submitted to the UNFCCC under the Paris Agreement. Countries set their own targets based on national circumstances. NDCs must be updated every 5 years with increasing ambition (ratchet mechanism). India’s updated NDC (2022): 500 GW non-fossil energy by 2030; 50% electricity from renewables; reduce emissions intensity by 45%. NDCs are not legally binding in terms of targets, but the process of submitting them is.

✅ Answer: A) Help developing countries mitigate and adapt to climate changeThe Green Climate Fund (GCF) was established under the UNFCCC to help developing countries mitigate and adapt to climate change. Developed countries committed to mobilise $100 billion per year by 2020 for developing countries (this target was not fully met). GCF is headquartered in Incheon, South Korea. India has received GCF funding for renewable energy and climate adaptation projects. The $100 billion target has been extended to 2025, with a new goal being negotiated for post-2025.

✅ Answer: A) Critical thresholds beyond which climate systems undergo irreversible changesClimate tipping points are critical thresholds beyond which climate systems undergo irreversible, self-reinforcing changes. Examples: melting of Greenland ice sheet (sea level rise), collapse of West Antarctic ice sheet, Amazon rainforest dieback, permafrost thaw (releasing CH₄), collapse of Atlantic Ocean circulation (AMOC). Crossing tipping points could trigger cascading effects. IPCC warns that some tipping points may be crossed at 1.5-2°C warming. This is why limiting warming to 1.5°C is critical.