Climate activists protest in Washington, D.C., the day after the election. Some progressives want President-elect Biden to bar any appointees with fossil fuel ties.

Climate activists hold signs at a protest during the 2020 Presidential election in Washington, D.C., U.S., on Wednesday, Nov. 4, 2020. Close contests in five key states mean the election may not be decided for days, or longer, even as President Donald Trump falsely claimed victory over Democrat Joe Biden with millions of ballots still to be counted. Photographer: Eric Lee/Bloomberg via Getty Images