March for Science in DC

A vendor sells souvenir tee shirts for the March for Science. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

A vendor sells souvenir tee shirts for the March for Science. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

Jane S. Richardson, March for Science in DC

Biophysicist Jane S. Richardson attends the March for Science in Washington D.C. Richardson developed the Richardson diagram, or ribbon diagram, method of representing the 3D structure of proteins. She is a professor in biochemistry at Duke University. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Harness that hot air" reads the protest sign bearing an image of President Donald Trump. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Truth Exists, Facts Matter" reads the protest sign. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Truth Exists, Facts Matter" reads the protest sign. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Grannies 4 Science" reads the protest sign. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Grannies 4 Science" reads the protest sign. (Photo by Jeff Malet)

March for Science in DC

Has anyone tried summoning Captain Planet? reads the protest sign. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The sign in photo reads a quote from astrophysicist Neil deGrasse Tyson, "The good thing about science is that its true whether or not you believe in it." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Denial is not a policy" reads the protest sign in photo. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "We speak for the trees" reads the protest sign in photo. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Science is true, like it or not" reads the protest sign in photo. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Resist" reads the protest sign in photo showing an image of a resistor. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Defunding public research encourages biased results" reads the protest sign in photo. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Polio sucks. Ask my Mom" reads the protest sign in photo. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. "Polio sucks. Ask my Mom" reads the protest sign in photo. (Photo by Jeff Malet)

March for Science in DC

Even children have something to say. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

Even children have something to say. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Science is real. Trump is fake" reads the protest sign. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Got smallpox?" reads the protest sign referring to the deadly disease eradicated by science. The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The T-Rex in photo says "Fund EPA study, quit being Cretaceous." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The T-Rex in photo says "Fund EPA study, quit being Cretaceous." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The T-Rex in photo says "Fund EPA study, quit being Cretaceous." (Photo by Jeff Malet)

March for Science in DC

"Stand up for Science." The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "SCIENCE is like an inoculation against charlatans..." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "SCIENCE is like an inoculation against charlatans..." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest signs read "The ocens are rising and so are we" and "Make science great again." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest signs read "The ocens are rising and so are we" and "Make science great again." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Facts matter." The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "remember polio, me neather, vaccines work." (Photo by Jeff Malet)

March for Science in DC

"We need science, science needs funding." The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

"Facts matter." The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "a nun taught me evolution - God's OK with science." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "think like a proton, be positive." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "think like a proton, be positive." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "Science: an American tradition." (Photo by Jeff Malet)

March for Science in DC

The March for Science, according to organizers, was the first step of a global movement to defend the vital role science plays in our health, safety, economies, and governments. Tens of thousands of teachers, scientists, researchers and general citizens gathered in Washington D.C. near the Washington Monument before marching down Constitution Ave. to the U.S. Capitol on a rainy Earth Day, Saturday, April 22, 2017, largely to protest the policies of President Donald Trump aimed against science and climate change. This was one of over 600 like marches that took place around the world. The protest sign reads "Edit Genes, Not the Truth." (Photo by Jeff Malet)