There was a very different American president this June at the Charlevoix G7 (as it has been since Russia’s suspension in 2014). Had it not been for the row with Justin Trudeau, when the Canadian prime minister responded to President Trump’s steel and aluminum tariffs with retaliatory tariffs of his own, the big story would have been the climate split. Where 15 years ago the mere possibility of isolation pushed Bush to compromise, Trump embraced the isolation and inserted an America-only paragraph into the summit communiqué outlining a position fundamentally contradicting the rest of the group’s.
https://www.weeklystandard.com/rupert-darwall/breaking-the-climate-spell
