New global climate commitments critical – but strong national laws must follow

International emissions-cutting targets need to be translated into national laws to guarantee delivery and protect the rights of future generations

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?

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”.

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 obligations on states to protect both present and future generations. They also provide clarity to business and investors on the long-term direction of policy and economic change.

It’s an area of environmental advocacy and legislation ClientEarth has worked in for over a decade. In Poland, in the absence of a legally binding government-level plan to tackle climate change, our lawyers put together a draft law to put pressure on the government to act. Our lawyers, alongside partners, are now supporting the development of framework climate laws in multiple countries, as we did with New Zealand’s Zero Carbon Act in 2018.

Future generations in focus

Future Generations Acts, like that introduced by Wales in 2015, are also a significant step that countries can take. Children and those not yet born have no recourse to participate in current decision-making processes, yet they stand to suffer the effects of our deteriorating climate far more than those currently holding power.

The first ever Declaration on Future Generations, agreed on Sunday by world leaders at the UN, was a commitment by countries to take account of future generations in decision-making. Their rights should now also be fully recognised in national law.

The law has an immense power to shape the world around us – both for those living in it today, and those who will inherit it in the future – and that’s why having the commitments made in the heady world of international diplomacy enshrined in binding national laws is a crucial next step for global climate action.

Cover photo: Two climate activists from the “Last Generation” group threw orange paint on the glass facade of the Zlote Tarasy shopping mall in central Warsaw, Poland, on August 28, 2024. The demonstration, timed to coincide with the beginning of the new school year, was intended to draw attention to the urgent climate crisis and its future impact on children. (Photo: Marek Antoni Iwanczuk / SOPA Images via Reuters)