Momentum is growing against clauses in investment treaties that permit companies to sue a state if it decides to keep fossil fuels in the ground. In this episode, we revisit the secretive world of investor-state dispute settlement (ISDS), which some experts are worried could jeopardise global efforts to save the climate and cost countries billions of dollars in the process.

Kyla Tienhaara, Canada research chair in economy and environment at Queen's University, Ontario in Canada, comes back on The Conversation Weekly to update us on the latest resistance to these clauses.

Part of this episode was first aired in October 2022. You can listen to the original episode here. It was produced by Gemma Ware and Mend Mariwany, with sound design by Eloise Stevens. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation.

Further reading:

• How treaties protecting fossil fuel investors could jeopardize global efforts to save the climate – and cost countries billions
• Energy charter treaty makes climate action nearly illegal in 52 countries – so how can we leave it?
• How Clive Palmer is suing Australia for $300 billion with the help of an obscure legal clause (and Christian Porter)
• The Energy Charter Treaty lets fossil fuel firms sue governments – but its future is now in question