Lesson 14 min 20 XP
The Paris Agreement
How a new diplomatic architecture — bottom-up pledges rather than top-down targets — achieved what Copenhagen could not.
The Paris Breakthrough
The Paris Agreement, adopted at COP21 on December 12, 2015, succeeded by inverting Kyoto's approach. Instead of top-down binding targets imposed by negotiators, Paris used bottom-up nationally determined contributions (NDCs) — each country sets its own climate pledges.
Key elements:
- Universal participation. Every country submits an NDC — no more developed/developing divide in terms of who must act.
- Temperature goal. Hold warming 'well below 2 degrees Celsius' and pursue efforts to limit it to 1.5 degrees.
- Ratchet mechanism. Countries must submit new NDCs every five years, and each must be more ambitious than the last.
- Global Stocktake. Every five years, collective progress is assessed to inform the next round of NDCs.
- Transparency framework. Countries report their emissions and progress, creating peer pressure for accountability.
The genius of Paris was creating universal buy-in by letting each country define its own contribution. The risk was that voluntary pledges would be insufficient — and indeed, current NDCs put the world on track for roughly 2.5-2.8 degrees of warming.