WCBE

March For Science

Updated at 4:30 p.m. ET

Tens of thousands of demonstrators took to the streets Saturday in Washington, D.C., and cities across the globe, for the People's Climate March, demanding action on protecting the environment.

On a sweltering hot day in the nation's capital, protesters made their way down Pennsylvania Avenue chanting, singing and banging drums. Once they reached the White House, some staged a sit-in while others marched past carrying signs and shouting, "Shame, shame, shame."

Updated at 1:25 p.m. ET

Enthusiasts say their March for Science on Saturday in communities around the world is intended to "support science for the public good."

The main event is happening in Washington, D.C., but satellite marches are planned in all 50 states, and at least 610 marches have been registered on the March for Science website across the world on all continents except Antarctica.

Demonstrations will be held this weekend in Columbus and nearly 500 other cities around the world to promote awareness of and investments in science.