People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. "Kamentsa Indigenous Presente" reads the sign. The Kamentsa are an indigenous people of Colombia. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. The protest sign depicts Michigan governor Rick Snyder's association with the Flint Michigan poison water controversy. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. The protest sign reads "save our bees plz (please)." (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. The sign compares Barack Obama, the Dalai Lama and Donald Trump ("as Ding Dong"). (Photo by Jeff Malet)

People's Climate March

"Climate Change is Real" reads the sign. The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

Political buttons on sale. The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

Political books on sale. The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. "Chemistry Not Corruption" reads the sign. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. "Chemistry Not Corruption" reads the sign. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. "No Paris Agreement? Bye Bye Florida" reads the sign. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. "Out of the White House, back to your penthouse" reads the sign. (Photo by Jeff Malet)

People's Climate March

"Oceans are rising and so are we." The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

"Coal age is over" reads the sign. The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. "Denial is not policy" and "respect your mother (earth)" read the signs. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)

People's Climate March

The People's Climate March got underway in Washington D.C. as tens of thousands of demonstrators packed the streets on Saturday April 29, 2017 in sweltering heat to protest the White House's refusal to acknowledge the scientific consensus about man-made contributions to climate change. (Photo by Jeff Malet)