The most recent report from the Intergovernmental Panel on Climate Change is scathing: it lays out the stark divide between rich and poor nations’ ability to withstand global warming’s worst effects.

This, just months after COP26 in Glasgow, where many delegates and activists were asking rich nations most responsible for greenhouse gas emissions to pay for the losses and damages that many developing nations are already experiencing from climate change. Demands for a specific compensation fund were not met.

Today, Canadian human rights lawyer Payam Akhavan is here to explain how some small island nations are looking at how they can use international law to make rich countries pay up. He’s a senior fellow at Massey College at the University of Toronto, and a former UN war crimes prosecutor who has served on tribunals investigating genocide in the former Yugoslavia and Rwanda. Now, he’s helped establish the Commission of Small Island States on Climate Change and International Law, and is serving as the group’s legal counsel.