The UN's biodiversity summits get less attention than their climate change pow-wows. The latest meeting ended yesterday in Montreal with an historic agreement that still left many unsatisfied. And it's time for our language columnist to select the Economist's word of the year. But first... On January 6th, 2021, having lost the presidential election, Donald Trump rallied thousands of his supporters in Washington, D.C. and encouraged them to march on the U.S. Capitol.