WASHINGTON, DC - SEPTEMBER 18: Founder of Fridays For Future Greta Thunberg (L) and co-founder of This Is Zero Hour and plaintiff in Piper v. State of Washington Jamie Margolin (R) testify during a House Foreign Affairs Committee Europe, Eurasia, Energy and the Environment Subcommittee and House (Select) Climate Crisis Committee joint hearing September 18, 2019 on Capitol Hill in Washington, DC. Thunberg, who recently sailed across the Atlantic Ocean in a zero-carbon emissions sailboat, is in Washington to discuss the climate crisis with lawmakers and will speak at the UN Climate Action Summit on September 23 in New York. (Photo by Alex Wong/Getty Images)
