Pierre Cannet is global head of public affairs and policy at ClientEarth.

The UN Summit of the Future that took place in New York over the weekend pitched strengthened diplomatic cooperation as the key to protecting the rights of present and future generations from environmental breakdown, amongst other issues.

As politicians, business leaders and civil society gathered in New York to discuss urgent progress needed on climate and nature, the upcoming diplomatic calendar was in sharp focus – in particular, the deadline for updated Nationally Determined Contributions (NDCs) in February 2025. NDCs are commitments on emissions-cutting that countries submit to the UN every 5 years, and they are central for the Paris Agreement’s mechanism to ratchet up countries’ decarbonisation ambitions over time.

But now is also the moment to start asking, what comes after and with the NDCs?

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The conversation must evolve to ensure that international targets are translated into strong national laws to guarantee their full delivery. For us at ClientEarth, that looks like two things at national level; the adoption of Future Generation Acts to incorporate long-term thinking into governance, and the implementation of ambitious and science-driven framework climate laws.

UK leads the way

So far, framework climate laws have been adopted in almost 60 countries around the world. The first was the UK’s groundbreaking 2008 Climate Change Act. It committed the UK government to reducing greenhouse gas emissions, with a pathway to achieving ‘Net Zero’ by 2050, and setting 5-year carbon budgets. It also established the Climate Change Committee – an expert, independent body that advises the government and ensures emissions targets are evidence-based and independently assessed.

Research says it has been working: a study from the London School of Economics suggests that the act has helped to reduce UK emissions over its 16 years, especially in the power sector: the share of low-carbon generation increased from 20% in 2008 to 45% in 2016, and experts say the act was a major driver of this transformation. The Intergovernmental Panel on Climate Change (IPCC), in its sixth assessment report, agreed that “climate laws have been growing in number and have helped deliver mitigation and adaptation outcomes”.

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Such framework climate laws create a clear and binding legal foundation for climate action that stands the test of time and changing politics. They create stronger obli