A climate change report card for the world

Last year’s United Nations climate conference in Glasgow, Scotland, had the same optimistic energy as the first day of a new school year. The United States — a truant since the nation withdrew from the Paris agreement under President Donald Trump — was back at the table. The cool kids (Leonardo DiCaprio, Prince William, Greta Thunberg) brushed shoulders with the nerds (everyone else). A parade of presidents and prime ministers pledged renewed climate efforts with all the fervor of students promising their parents that this semester would be different.

Read more on The Washington Post.