The Paris Agreement (2015) represents the most ambitious multilateral climate compact, committing nations to limit global average temperature rise to well below 2°C above pre-industrial levels, with efforts toward 1.5°C — a threshold critical to averting irreversible climate tipping points.
The Agreement operates through Nationally Determined Contributions (NDCs), where each signatory sets its own emission reduction targets. A five-year review cycle — the 'ratchet mechanism' — is designed to progressively enhance ambition, ensuring commitments are not static but escalate over time.
The Agreement retains the principle of Common But Differentiated Responsibilities (CBDR), allowing developing nations flexibility in timelines while obligating developed nations to provide climate finance. The $100 billion annual climate finance pledge to developing countries remains a persistent point of contention regarding delivery and adequacy.
Current aggregated NDCs, even if fully implemented, are projected to result in warming well above 2°C by 2100. The gap between pledged commitments and the actions required to meet the 1.5°C target represents the Agreement's most critical structural weakness.
India has committed to achieving net-zero emissions by 2070 and has updated its NDCs to include a significant share of non-fossil fuel-based electricity capacity. Balancing developmental imperatives with climate obligations remains the central governance challenge for emerging economies.
The Paris Agreement's voluntary, bottom-up design prioritises universality over enforceability. Bridging the ambition gap demands stronger accountability mechanisms, equitable climate finance flows, and technology transfer — without which the 1.5°C target risks becoming aspirational rather than operational.
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