Leaders attending the COP30 U.N. Climate Summit pose for a group photo in Belem, Brazil, Friday, Nov. 7, 2025. (AP Photo/Fernando Llano)

Canadian climate negotiators are headed to Brazil for the next two weeks as leaders gather for annual United Nations climate talks.

The talks come as Prime Minister Mark Carney, whose credentials as an international climate advocate helped win him support in this year’s election, comes under increasing scrutiny for his reversal of some key Trudeau-era climate policies – and his government’s perceived softening on the oil and gas sector, the biggest source of Canada’s emissions.

One focus is expected to be on how the world will adapt to climate change risks – and how countries will pay for those mitigation efforts.

This year marks the 10th anniversary

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