Canada’s climate leader goes to Washington

By Sara Schonhardt | 05/07/2025 06:07 AM EDT

Prime Minister Mark Carney, who until recently was a U.N. climate envoy, met with President Donald Trump, who has tried to dismember climate policy.

President Donald Trump talks with Canadian Prime Minister Mark Carney in the Oval Office on Tuesday.

President Donald Trump talks with Canadian Prime Minister Mark Carney in the Oval Office on Tuesday. Evan Vucci/AP

Newly elected Canadian Prime Minister Mark Carney has styled himself as a climate champion. On Tuesday he met with President Donald Trump, who has called climate change a hoax and dismantled efforts to address it.

That difference, one of many between the two leaders, signals how much U.S.-Canada relations have changed since Trump entered the White House in January. His use of tariffs and threats to make Canada a U.S. state injected life into Carney’s political campaign, at a time when his signature effort within the United Nations to harness financial action against climate change had badly stumbled.

His Liberal Party was a long shot to retain control in Canada — until Trump united voters behind the former central banker.

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“I think I was probably the greatest thing that happened to him,” Trump told reporters in the Oval Office before congratulating Carney on his victory last week.

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