Police officers remove protesters from a blockade on Waterloo Bridge during the second day of a coordinated protest by the Extinction Rebellion group on April 16th, 2019, in London, England.
Protests in Sudan continued following President Omar al-Bashir's ouster, after the military dissolved the government and suspended the country's constitution.
Demonstrators protest against the North Atlantic Treaty Organization near the Department of State in Washington, D.C., on April 4th, 2019, as NATO ministers gather for a meeting.
"We are striking because if the social order is disrupted by our refusal to attend school, then the system is forced to face the climate crisis and enact change."