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Image: Scientists, students and research advocates rally from the Brandenburg Gate to the Washington Monument in Washington, DC, conveying a global message of scientific freedom without political interference.

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Around the World, Cities Swell With Celebrations for Science

Thousands celebrated Earth Day by rallying for science, protesting climate change denial and President Donald Trump's proposed budget cuts.

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Image: People carry a March for Science banner and signs as they pass the U.S. Environmental Protection Agency during the March For Science in Washington, DC, April 22, 2017.

People carry a March for Science banner and signs as they pass the U.S. Environmental Protection Agency during the March For Science in Washington, DC, April 22, 2017.

Organizers of the march sought to call attention to climate change and President Trump's budget cuts to organizations that aid scientific research.The DC march was one of dozens around the United States. Hundreds of thousands of people in more than 400 locations across the globe also took part in the March for Science to recognize scientific progress, raise awareness of scientific discovery, and defend scientific integrity.

— Sait Serkan Gurbuz / AP
Image: Science educator Bill Nye, popularly known as 'Bill Nye the Science Guy', announces the start of the March for Science, which saw tens of thousand of protesters walking along Constitution Avenue, in Washington, DC.

Science educator Bill Nye, popularly known as 'Bill Nye the Science Guy', announces the start of the March for Science, which saw tens of thousand of protesters walking along Constitution Avenue, in Washington, DC.

— Jim Lo Scalzo / EPA
Image: Scientists, students and research advocates rally from the Brandenburg Gate to the Washington Monument in Washington, DC, conveying a global message of scientific freedom without political interference.

Scientists, students and research advocates rally from the Brandenburg Gate to the Washington Monument in Washington, DC, conveying a global message of scientific freedom without political interference and spending necessary to make future breakthroughs possible.

— Sait Serkan Gurbuz / AP
Image: Protesters participate in the March for Science rally in Santiago, Chile. April 22, 2017.

Protesters participate in the March for Science rally in Santiago, Chile.

— Ivan Alvarado / Reuters
Image: People stand with signs in Times Square at the end of the March for Science in New York.

People stand with signs in Times Square at the end of the March for Science in New York.

— Bryan R. Smith / AFP - Getty Images
Image: A man in a Donald Trump mask pretends to play golf with the earth during the science march in New York City.

A man in a Donald Trump mask pretends to play golf with the earth during the science march in New York City.

— Justin Lane / EPA
Image: Activists carry a portrait of Benjamin Franklin-- an American Founding Father and renowned scientist-- during a march in Washington, DC.

Activists carry a portrait of Benjamin Franklin-- an American Founding Father and renowned scientist-- during a march in Washington, DC.

— Brendan Smialowski / AFP - Getty Images
Image: Members of a group called W.I.T.C.H-- which stands for various different phrases-- join the March for Science rally on the Common in Boston.

Members of a group called W.I.T.C.H-- which stands for various different phrases-- join the March for Science rally on the Common in Boston.

— Brian Snyder / Reuters
Image: A brass band walks with demonstrators marching down Commonwealth Avenue from Massachusetts Institute of Technology (MIT) to the March for Science rally on the Common in Boston.

A brass band walks with demonstrators marching down Commonwealth Avenue from Massachusetts Institute of Technology (MIT) to the March for Science rally on the Common in Boston.

— Brian Snyder / Reuters
Image: Children hold a banner during the science march in Mexico City, Mexico. The banner reads \"Science for Life, Never for War.\"

Children hold a banner during the science march in Mexico City, Mexico. The banner reads "Science for Life, Never for War."

— Jose Luis Gonzalez / Reuters
Image: Demonstrators use Christmas to illustrate the importance of science in Los Angeles, California.

Demonstrators use Christmas to illustrate the importance of science in Los Angeles, California.

— Sarah Morris / Getty Images
Image: A demonstrator holds a placard as he participates in the March for Science rally in Mexico City, Mexico. The placard reads \"Give holiday to your sin.\"

A demonstrator holds a placard as he participates in the March for Science rally in Mexico City, Mexico. The placard reads "Give holiday to your sin."

— Jose Luis Gonzalez / Reuters
Image: Scientists and supporters dress is costume for the Los Angeles march.

Scientists and supporters dress is costume for the Los Angeles march.

— Sarah Morris / Getty Images
Image: Demonstrators gather at the Boston Common.

Demonstrators gather at the Boston Common.

— Scott Eisen / Getty Images
Image: A man gestures with 'Galileo's light' in Washington, DC.

A man gestures with 'Galileo's light' in Washington, DC.

— Jessica Kourkounis / Getty Images
Image: Demonstrators hold signs of significant women in science during the March for Science in Washington, DC.

Demonstrators hold signs of significant women in science during the March for Science in Washington, DC.

— Jessica Kourkounis / Getty Images
Image: Scientists and supporters participate in the march under a rainy sky in Washington, DC.

Scientists and supporters participate in the march under a rainy sky in Washington, DC.

— Jessica Kourkounis / Getty Images
Image: Protesters are seen at a rally at the Boston Commons.

Protesters are seen at a rally at the Boston Commons.

— Ryan McBride / AFP - Getty Images
Image: Scientists and supporters gather in Pershing Square in Los Angeles.

Scientists and supporters gather in Pershing Square in Los Angeles.

— Sarah Morris / Getty Images
Image: Harry Park pours boiling water into a bucket of liquid nitrogen, making a \"thunder cloud\" for a science experiment demonstration by the Berkshire Museum at the Pittsfield March for Science in Pittsfield, Massachusetts.

Harry Park pours boiling water into a bucket of liquid nitrogen, making a "thunder cloud" for a science experiment demonstration by the Berkshire Museum at the Pittsfield March for Science in Pittsfield, Massachusetts.

— Stephanie Zollshan / AP
Image: Protesters hold banners during the March for Science in Paris, France, where scientists, science enthusiasts, and concerned citizens come together to make themselves heard.

Protesters hold banners during the March for Science in Paris, France, where scientists, science enthusiasts, and concerned citizens come together to make themselves heard.

— Emeric Fohlen / Zuma Press
Image: Demonstrators attend the March for Science in front of the Pantheon in Rome, Italy, 22 April 2017.

Demonstrators attend the March for Science in front of the Pantheon in Rome, Italy, 22 April 2017.

— Massimo Percossi / EPA
Image: A man and child join the march in San Francisco.

A man and child join the march in San Francisco.

— Josh Edelson / AFP - Getty Images
Image: Demonstrators at the San Francisco science march.  March for Science in San Francisco, California on April 22, 2017.

Demonstrators at the San Francisco science march. March for Science in San Francisco.

— Josh Edelson / AFP - Getty Images
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