How much does Canada owe in climate aid? A trillion-dollar question headlines COP29

This year’s international climate talks are expected to be headlined by fraught negotiations over how Canada and other wealthy countries, who have contributed a disproportionate share of planet-warming emissions, should financially compensate other nations in their fight to tackle climate change.Many pressing questions for negotiators are on the table: How much should those wealthy countries pay? Which countries will have to contribute? And how should the money be provided?