Climate science has struggled mightily with a messaging problem.

The well-worn tactic of hitting people over the head with scary climate change facts has proved inadequate at changing behaviour or policies in ways big enough to alter the course of global warming.

While Europe has made some headway, the largest obstacles to change remain in the United States, which has historically been responsible for more emissions than any other country. And perhaps most important, climate change denial has secured a perch in the Trump administration and across the Republican Party.

Enter the fast-growing academic field of climate change communication. Across

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