In Photos: New Yorkers March for Science on Earth Day

New Yorkers gather for the March for Science on Saturday. Jessica Firger/Newsweek

On Saturday, millions of people worldwide took to the streets for the March for Science. Organizers in Washington, D.C. reported more than 600 satellite marches worldwide planned for the day. The mass demonstrations, held on Earth Day, were meant to raise awareness about the importance of funding (and trusting) science. New York City's march drew throngs of geeks with both a personal and professional passion for evidence-based research, many with a knack for pro-science messaging.

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Jessica Firger/Newsweek

Shana Opdenberg, 46 year old

Occupation: Elementary school science teacher

From South Orange, N.J.

"I teach STEM. They're so excited to come in my class. We're making shoes that mimic animals that have adapted to different habitats such as fins or flipper. I'm a STEM-inist!"

Jessica Firger/Newsweek

Perry Hoberman, 62

Occupation: Media artist and professor

From Los Angeles, CA

"Evolution is obviously the most radical scientific theory of all them. It means there was nobody telling the universe what to do."

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Jim Macdonald, 67 years old

From Flushing, Queens

"These people have a veneer on the march for it being pro-science. We all know it's a way of saying 'we hate Trump.' Most of America appreciates the fact that he's standing up to North Korea and the Middle East."

Favorite scientific theory: "The earth is hollow."

Jessica Firger/Newsweek

Ashley Semrick with daughter, Lucy

"Protesting is the new parenting."

Jessica Firger/Newsweek

Paul Wang with family

From East Village, New York City

Favorite scientific theory: Law of thermodynamics "When something is moving, it's moving. When something is at rest, it's at rest."

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Mitchell Belgian, 61 years old with wife

Occupation: Psychiatrist

"We appropriated the sign from the scientologists, but we forgot to say under here 'badly needed.'"

Jessica Firger/Newsweek

Jim Duehr, 25 years old

Currently a third year PhD student at Mount Sinai School of Medicine

"I work on vaccines and therapies for hemorrhagic disease, Ebola, hantaviruses and flaviviruses like Zika. I read the Wikipedia article for smallpox for a pickup every once in awhile."

Jessica Firger/Newsweek

Tamara Freuman, 41 years old

Occupation: Registered dietician

From Nyack, N.Y.

"In my practice it's all I'm doing these days: battling pseudoscience. I spend a lot of time unteaching things people have learned from Dr. Oz."

Jessica Firger/Newsweek

Ruby, 11 years old and Eden, 15 years old with father Brad Mehldau, 46 years old

Eden: "I'm very interested in science. But I'm not very good at it."

Ruby: "I'm in a play about rocks and minerals. I'm playing olivine. It's a meteorite."

Jessica Firger/Newsweek

Melissa O'Brien, 56 years old

Occupation: Computer programmer

From Jersey City, N.J.

"The Trump administration is destroying our scientific data. Not to mention, he has tiny hands."