Paris Agreement

1. Origin, legal character and guiding principles

The Paris Agreement was adopted by Parties to the UNFCCC at the twenty-first Conference of the Parties, or COP21. It entered into force after at least 55 Parties representing at least 55% of total global greenhouse gas emissions deposited their instruments of ratification, acceptance, approval or accession. Its governing body is the Conference of the Parties serving as the meeting of the Parties to the Paris Agreement, abbreviated CMA.

Paris differs from the Kyoto Protocol's architecture of internationally negotiated emission-reduction commitments for specified developed countries. It requires all Parties to undertake climate action through nationally determined contributions. Universal participation, however, does not mean identical responsibilities. Article 2 states that implementation must reflect equity and common but differentiated responsibilities and respective capabilities, in the light of different national circumstances.

The Agreement is legally binding, but not every provision creates the same kind of obligation. Parties must prepare, communicate and maintain successive NDCs and pursue domestic mitigation measures aimed at achieving them. The achievement of each nationally selected emissions target is not backed by an international penalty system. Article 15 establishes a facilitative, expert-based, non-adversarial and non-punitive implementation and compliance mechanism.

• COP is the governing conference of the UNFCCC; CMA specifically oversees the Paris Agreement.
• Developed countries should continue taking the lead through economy-wide absolute emission-reduction targets.
• Paris retains differentiation while moving beyond a system in which only developed countries had quantified mitigation commitments.

2. Temperature goal, mitigation and the NDC cycle

Article 2 establishes three linked objectives: limiting temperature rise, strengthening adaptation and climate resilience, and making finance flows consistent with low-greenhouse-gas-emission and climate-resilient development. The temperature objective is to hold the increase in global average temperature well below 2°C above pre-industrial levels while pursuing efforts to limit it to 1.5°C. These are long-term global climate goals, not limits on warming in every country or on the temperature of an individual year.

Article 4 seeks global peaking of greenhouse gas emissions as soon as possible, recognising that peaking will take longer for developing countries. Rapid reductions should follow, aiming for a balance between anthropogenic emissions by sources and removals by sinks in the second half of this century. This is a global balance of greenhouse gases, not a treaty requirement that every country achieve net-zero carbon dioxide emissions by 2050.

NDCs are the foundation of implementation. Each Party determines its contribution according to national circumstances, communicates it every five years and maintains a successive contribution. Each successive NDC should progress beyond the previous one and reflect the Party's highest possible ambition. Contributions may contain absolute emissions targets, emissions-intensity targets, renewable-energy measures, sink enhancement and adaptation priorities.

The five-year cycle is often called an ambition mechanism: countries submit contributions, implement action, report progress and use collective assessments to inform stronger subsequent efforts. The Agreement also invites long-term low-greenhouse-gas-emission development strategies. Such strategies provide direction over decades but do not replace NDCs.

• An emissions-intensity target reduces emissions per unit of GDP; it does not necessarily reduce total emissions.
• The IPCC assesses climate science; it does not negotiate or enforce countries' NDCs.

3. Adaptation, finance and loss and damage

Article 7 establishes a global goal on adaptation: enhancing adaptive capacity, strengthening resilience and reducing vulnerability to climate change. Adaptation should be country-driven, gender-responsive, participatory and transparent, with attention to vulnerable groups, communities and ecosystems. Adaptation communications can describe priorities, needs, plans and actions; the Agreement does not prescribe identical adaptation targets for all countries.

Article 9 requires developed-country Parties to provide financial resources to assist developing-country Parties with mitigation and adaptation, continuing their existing obligations under the Convention. Other Parties are encouraged to provide support voluntarily. Technology development and transfer under Article 10 and capacity-building under Article 11 complement finance. The Green Climate Fund and Global Environment Facility serve the Agreement through the Convention's financial mechanism; the Paris Agreement did not create them.

The often-cited USD 100 billion annual climate-finance goal originated before Paris and was continued through associated decisions. It is not a permanent numerical obligation written into Article 9. At COP29 in Baku in 2024, Parties agreed on a new collective quantified goal of at least USD 300 billion annually by 2035 for developing countries, with developed countries taking the lead. The decision also called for scaling finance from all public and private sources to at least USD 1.3 trillion annually by 2035.

Article 8 recognises the importance of averting, minimising and addressing loss and damage, including extreme weather and slow-onset events. However, the accompanying Paris adoption decision states that Article 8 does not involve or provide a basis for liability or compensation. Establishing a dedicated loss-and-damage fund at COP27 and operationalising it at COP28 were later decisions, not original Paris provisions.

4. Transparency, Global Stocktake and Article 6

Article 13 creates an enhanced transparency framework covering action and support. Parties report greenhouse gas inventories and information needed to track NDC implementation and achievement. Biennial Transparency Reports are central to this framework, with the first generally due by 31 December 2024. Least developed countries and small island developing States may submit them at their discretion; flexibility also applies to developing countries that need it in light of their capacities.

Article 14 provides for a Global Stocktake every five years, beginning in 2023. It assesses collective progress across mitigation, adaptation and means of implementation and support, in the light of equity and the best available science. It is not a country-by-country compliance ranking. Its outcome informs subsequent national action, support and international cooperation.

Article 6 permits voluntary cooperation. Article 6.2 supports cooperative approaches involving internationally transferred mitigation outcomes, subject to robust accounting. Article 6.4 establishes a UN-supervised mechanism for emission reductions and sustainable development. Article 6.8 addresses non-market approaches. Corresponding adjustments help prevent the same transferred mitigation outcome from being counted towards both the seller's and buyer's targets.

• Transparency asks what Parties are doing; the Global Stocktake asks whether collective efforts are sufficient.
• Article 6 is not exclusively about carbon trading because it also recognises non-market cooperation.

5. India's commitments and examination distinctions

India's updated NDC, communicated in August 2022, commits to reducing the emissions intensity of GDP by 45% by 2030 from the 2005 level. It also aims to achieve about 50% of cumulative electric power installed capacity from non-fossil-fuel-based energy resources by 2030, with the help of technology transfer and low-cost international finance, including from the Green Climate Fund.

The updated NDC retains the commitment to create an additional carbon sink of 2.5–3 billion tonnes of carbon dioxide equivalent through additional forest and tree cover by 2030. It also advances sustainable lifestyles through Lifestyle for Environment, or LiFE. India's net-zero target for 2070 and its long-term low-carbon development strategy, submitted in November 2022, provide a longer-term context distinct from the quantified 2030 NDC targets.

Prelims questions often turn on measurement boundaries. Installed electricity capacity is not actual electricity generation, and non-fossil energy includes nuclear and hydropower as well as solar and wind. Similarly, an additional carbon-sink commitment is not a target for total forest carbon stock. Paris seeks progressively stronger action through cooperation, transparency and domestic implementation rather than automatically imposing uniform national emissions ceilings.

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