Youth Activists Hold One-Year Anniversary 'Climate Strike' In London

England Europe Extinction Rebellion Fridays for Future Greta Thunberg London Schools Strike for Climate UK United Kingdom XR YouthStrike4Climate activist groups campaign groups civil disobedience climate activism climate change climate crisis climate emergency climate protest climate strikes direct action environmental protection environmentalism global heating global warming political activism political and social movements politics pressure groups school strikes youth strikes climate crisis global wave of climate strike protests worldwide climate activism direct action protests activist movement past year greater action Extinction Rebellion movement coordinated global events Parliament Square Future hundreds of thousands tandem growth schoolchildren London streets youth Fridays governments David Cliff NurPhoto cities demonstration event marks