NEWSPeople's Climate March signs from around the worldDemonstrators holds signs during the People's Climate March outside Trump International Hotel & Tower on April 29, 2017 in Chicago.Joshua Lott, AFP/Getty ImagesDemonstrators hold signs as they march on the Wacker Drive during "100 Days of Failure" protest and march in Chicago. Thousands of people across the U.S. are marking President Donald Trump's hundredth day in office by marching in protest of his environmental policies.Nam Y. Huh, APDemonstrators gather at Civic Center Park during the People's Climate March during a spring snow storm in Denver.Jason Connolly, AFP/Getty ImagesThousands of protestors march around downtown Denver at the People's Climate March on April 29, 2017.Marc Piscotty, Getty ImagesA demonstrator holds a sign during "100 Days of Failure" protest and march on April 29, 2016, in Chicago. Thousands of people across the U.S. are marking President Donald Trump's hundredth day in office by marching in protest of his environmental policies.Nam Y. Huh, APDeonstrators march across Fifth Avenue during "100 Days of Failure" protest and march in New York. Thousands of people across the U.S. are marking President Donald Trump's hundredth day in office by marching in protest of his environmental policies.Mary Altaffer, APMeteorologist Lis Cohen of Denver holds a sign while cheering on protesters at the People's Climate March in Denver.Marc Piscotty, Getty ImagesLeah Stein of Parker, Colo. holds a sign while protesting at the People's Climate March in Denver.Marc Piscotty, Getty ImagesProtesters hold signs and chant in front of the White House during the People's Climate March in Washington, D.C., on April 29, 2017.Nicholas Kamm, AFP/Getty ImagesProtesters hold signs and chant in front of the White House during the People's Climate March in Washington.Nicholas Kamm, AFP/Getty ImagesProtestors hold signs and chant in front of the White House during the People's Climate March in Washington.Nicholas Kamm, AFP/Getty ImagesPeople gather near the U.S. Capitol for the People's Climate March before marching to the White House to protest President Donald Trump's environmental policies on April 29, 2017 in Washington, D.C. Demonstrators across the country are gathering to demand a clean energy economy.Astrid Riecken, Getty ImagesPeople hold signs for the World Climate March in Geneva, Switzerland.Salvatore Di Nolfi, Keystone, Via European Pressphoto AgencyA dog carries a sign during the World Climate March in Geneva, Switzerland.Salvatore Di Nolfi, Keystone, Via European Pressphoto AgencyPeople carry placards and banners as they join several thousands gathering on the Museumplein (Museum Square) for the People's Climate March, in Amsterdam, The Netherlands on April 29, 2017.Koen Van Weel, European Pressphoto AgencyA protester holds a sign for the World Climate March in Geneva, Switzerland.Salvatore Di Nolfi, Keystone, Via European Pressphoto AgencyPeople gather near the U.S. Capitol for the People's Climate March before heading to the White House on April 29, 2017 in Washington, D.C.Astrid Riecken, Getty ImagesPeople gather near the U.S. Capitol for the People's Climate March before marching to the White House to protest President Donald Trump's envirnomental policies on April 29, 2017 in Washington, D.C.Astrid Riecken, Getty Images