In Davos on Tuesday, President Donald Trump pledged the United States to a major global project to plant a trillion trees worldwide in the next decade.

In almost any previous administration, that announcement would have been the centerpiece of the president's speech to the World Economic Forum, focusing this year on climate change amid Australia's wildfires and faster than expected progress toward renewable energy generation.

Instead, Trump grabbed the agenda in a very different way, lambasting climate change campaigners as "prophets of doom" making "predictions of apocalypse" and pledging that America would defend its economy. Like almost every other major action the president takes this year, it paints an unambiguous picture of both how he sees the world and intends to use that framing to win a second term.