Protesters hold placards and shout slogans as they occupy a street demanding that Hong Kong's leader step down on June 17th, 2019, in Hong Kong, China.
Demonstrators from the pro-impeachment group By the People rally in the Cannon House Office Building Rotunda on Capitol Hill on May 14th, 2019, in Washington, D.C.
Supporters of Juan Guaidó gather to demonstrate against the government of Nicolás Maduro in a vigil on May 5th, 2019, in Caracas, Venezuela.
Climate change protests around the world are stopping traffic and leading to widespread arrests.
Algerian security forces use a water canon to disperse students taking part in an anti-government demonstration in the capital Algiers on April 9th, 2019.
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.
Angry protesters barricaded roads with burning tires and rocks after the government more than doubled the price of fuel in a bid to improve supplies as the country battles its worst gasoline shortage in a decade.
Security forces fire tear gas into a crowd of supporters of Madagascan presidential candidate Marc Ravalomanana, breaking up a demonstration against the country's election results on January 2nd, 2019, in Antananarivo.
Portraits of Venezuelan migrants and refugees are displayed in Bogota, Colombia, as part of worldwide demonstrations in support of dignity for migrants for International Migrants Day on December 18th, 2018.
Demonstrators protest against the upcoming G20 summit in Leon Kolbowsky Stadium on November 27th, 2018, in Buenos Aires, Argentina.
The proposed changes could put a fee on protesting in the nation's capitol.
People carry portraits of World War II soldiers during the immortal regiment march, in which Russia marks the 73rd anniversary of the Soviet Union's victory over Nazi Germany, in downtown Saint Petersburg on May 9th, 2018.
University workers attend a rally outside the Scottish Parliament on March 8th, 2018, in Edinburgh, Scotland.
Women carry banners during a demonstration on March 5th, 2018, in Colombo, Sri Lanka.
A demonstrator covers his face with a mask depicting ousted separatist leader Carles Puigdemont during a protest outside the Catalan parliament on January 30th, 2018, in Barcelona, Spain.
Whether meaningful mass grassroots action or silly stunt, the political theater of the International Day of Climate Action made a splash.