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COP21 – a successful ‘end of the beginning

The Paris Agreement provides a clear signal and a solid framework for climate action. Balanced and ambitious in its objectives – including full decarbonization of the global economy before the end of the century – it has all the conditions to encourage everyone to do more.

In establishing a new international climate change regime, the Agreement focuses on the essentials: guiding countries towards low-carbon and climate resilient economies. The main challenge resides not in the direct implementation of the decisions taken in Paris, but rather in the alignment of countries’ national strategies with a decarbonization trajectory.

COP21 marks the advent of a new regime of international cooperation rather than a ‘utopian’ and politically unpalatable system to punish or coerce States to take action. It confirms the desire to engage both State and non-State actors on climate action. In this respect, it is a real victory of multilateralism.

Indeed, COP21 marks the “end of the beginning” of a long negotiations process to shift to a permanent regime, completed by regular appointments to boost ambition. This victory, however, will become historical only if this cooperation leads to enhanced action and concrete results. And this is where the hard work begins!

COP21 – a successful ‘end of the beginning Download
I4CE Contacts
Hadrien HAINAUT
Hadrien HAINAUT
Program director – Climate finance, energy transition and forecasting Email
Vivian DEPOUES, PhD
Vivian DEPOUES, PhD
Research Lead – Adaptation to climate change Email
Benoît LEGUET
Benoît LEGUET
Managing Director Email
To learn more
  • 01/16/2026 Foreword of the week
    2026: An electric atmosphere

    The year ahead promises to be electric. In a highly unpredictable geopolitical context, the European Union must balance its commitment to the long-term goals of climate neutrality and the immediate attention to security and competitiveness concerns. This puts electrification high on the agenda in Brussels. First, the Grids Package, presented in December 2025, provides for a more centralised approach to planning and is expected to be adopted by the Council in June. Second, before the summer, the Commission intends to present an Electrification Action Plan, which will focus on lowering prices and reinforcing demand. 

  • 12/12/2025 Blog post Foreword of the week
    Paris +10: France and Europe must step up on climate – to protect our security, sovereignty, competitiveness, and public finances

    How distant December 12, 2015 now seems. All delegations at COP21 had then rallied behind Laurent Fabius’s little green hammer. Ten years later, the trend is closer to backlash. Climate action is now often portrayed in the public debate as too costly, because it requires major investment. Ineffective, since our share of global emissions is small. Unfair, because it cuts into purchasing power. Too divisive, supported only by part of the electorate. Too late, since keeping the planet below +2°C of warming now seems out of reach. Arguments that are partly true—yet require substantial nuance. 

  • 12/11/2025 Blog post
    Climate finance at COP30: Progress, pitfalls, persistent challenges and the path ahead

    A few weeks ago, COP30 concluded in Belém with all parties agreeing on a “global mobilization” (or mutirão) against climate change, proving that multilateralism remains a viable path for action, despite strong geopolitical and economic headwinds. However, Belém delivered underwhelming results: no roadmap to transition away from fossil fuels –despite a powerful push from President Lula, rallying over 80 countries, a lack of concrete decisions on deforestation –disappointing for an “Amazon COP”, and mixed results on the global goal on adaptation, among other outcomes.  

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Press contact Amélie FRITZ Head of Communication and press relations Email
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