'There is a taboo word at this year’s 22nd UN climate change summit: Trump. The president-elect is omnipresent in Marrakesh. You can feel him lurking behind talks on low-carbon economies and in the cracks between climate-induced loss and damage. He’s never directly addressed, but he’s always in the room. You can tell from the anxiety in people’s voices and their disapproving headshakes, heavy with concern for what the future for action on climate change holds.'