1/13From left, French Foreign Minister Laurent Fabius, primatologist Jane Goodall, former U.S. Vice President Al Gore, New York Mayor Bill de Blasio, and U.N. Secretary General Ban Ki-moon participate in the People's Climate March, in New York, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
2/13People hold banners and dance during a Climate Change March demanding politicians take tougher action to protect the climate, in Berlin, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
3/13Demonstrators make their way down Sixth Avenue during the People's Climate March, in New York, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
4/13People hold posters during a Climate Change march to demand politicians take tougher action to protect the climate at Angel de la Independencia monument in Mexico City, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
5/13From left, Designer Vivienne Westwood, musician Peter Gabriel and actress Emma Thompson join an estimated 40,000 people marching from the Embankment via Whitehall to the Houses of Parliament as part of the People's Climate March, in central London, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
6/13Demonstrators make their way down Sixth Avenue during the People's Climate March, in New York, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
7/13Actor and activist Mark Ruffalo (center left) and actor Leonardo DiCaprio (center right) join participants during the People's Climate March, in New York, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
8/13People with a green heart painted on their faces attend the People's Climate March in the rain at Ipanema beach, Rio de Janeiro, Brazil, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
9/13Activists hold a banner as they lead a march of tens of thousands down Sixth Avenue during the People's Climate March through Midtown, New York City, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
10/13Demonstrators gather in Central Park before the People's Climate March, in New York, Sept. 21, 2014.
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
11/13Thirty religious groups pack 58th Street waiting to join the People's Climate March, in New York, Sept. 21, 2014. (Rosanne Skirble/VOA)
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
12/13Part parade, part protest, colorful floats lined the route from Central Park to the United Nations in New York, Sept. 21, 2014. (Rosanne Skirble/VOA)
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.
13/13Dozens of labor unions representing teachers, electricians, nurses and others march in the People's Climate March, New York, Sept. 21, 2014. (Rosanne Skirble/VOA)
Thousands of demonstrators marched on Sunday, accompanied by drumbeats, wearing costumes and carrying signs as they urged policy makers to take global action on climate change.