ASSOCIATED PRESS
Activists march through Westminster during a 'climate strike' demonstration, part of the global 'Fridays for Future' movement led by Swedish teenage environmentalist Greta Thunberg, in London, Friday, Sept. 24. Britain is set to host the 2021 United Nations Climate Change Conference (better known as COP26) this November, with British Prime Minister Boris Johnson meanwhile using his trip to the U.N. General Assembly in New York this week to press governments for tougher emissions-cutting targets and more money to help poor countries clean up their economies.