![Protesters in 2018 outside Pennsylvania Senator Pat Toomey’s office.](/sites/default/files/styles/large/public/article18-19/Pennsylvania%20Protesters.jpg?itok=cOUWj-wE)
Pennsylvania Protesters
![A 1902 lithograph shows the joining of the Alleghany River with the Monongahela River.](/sites/default/files/styles/large/public/article18-19/Three%20River%20Confluence.jpg?itok=fvCfQ0iE)
Three River Confluence
![A storm drain emptying into California’s Monterey Bay National Marine Sanctuary.](/sites/default/files/styles/large/public/article18-19/Urban%20Runoff.jpg?itok=GQvFWIbL)
Urban Runoff
![A train loaded with waste from Utah’s Bingham Copper Mine.](/sites/default/files/styles/large/public/article18-19/Mine%20Waste.jpg?itok=z_KZXN8s)
Mine Waste
![Environmental Protection Agency scientists in 2009 surveying aquatic life.](/sites/default/files/styles/large/public/article18-19/EPA%20Scientists.jpg?itok=q5hM7HAM)
EPA Scientists
![The towboat, Donna York, pushs barges of coal up the Ohio River in 2009.](/sites/default/files/styles/large/public/article18-19/Coal%20Barge.jpg?itok=g-APwalh)
Coal Barge
![A 2018 painted storm drain in Richmond, Virginia.](/sites/default/files/styles/large/public/article18-19/Richmond%20Storm%20Drain.jpg?itok=uY66MIsV)
Richmond Storm Drain
![An 1850 portrait representing clothing and devices a woman and her dog use to ward off cholera.](/sites/default/files/styles/large/public/article18-19/Cholera-Prevention%20Woman.jpg?itok=LyhzjJIK)
Cholera-Prevention Woman
![The Bellevue Incline in Cincinnati, Ohio, transports two trolleys and a horse and wagon.](/sites/default/files/styles/large/public/article18-19/Cincinnati%20Incline.jpg?itok=9PnY0BEb)
Bellevue Incline
![This is a 1944 article from the Courier-Journal in Louisville, Kentucky.](/sites/default/files/styles/large/public/article18-19/Courier-Journal%201944_0.png?itok=fOC7AJw3)
Courier-Journal 1944
![Detergent suds overflow from aeration tanks at the Southerly Wastewater Treatment Plant.](/sites/default/files/styles/large/public/article18-19/Southerly%20Aeration%20Tanks.jpg?itok=KLxYU7nn)
Southerly Aeration Tanks
![The Colorado River irrigates Southern California’s agricultural Imperial Valley.](/sites/default/files/styles/large/public/article18-19/Imperial%20Valley.jpg?itok=K_ylG5I-)
Imperial Valley
![Lady Bird Johnson and others raft down the Snake River.](/sites/default/files/styles/large/public/article18-19/Lady%20Bird%20Johnson.jpg?itok=ld0VjBEj)
Lady Bird Johnson
![Republic Steel Corporation sprawls across 798 acres.](/sites/default/files/styles/large/public/article18-19/Republic%20Steel%20Corporation.jpg?itok=BQHkeAl5)
Republic Steel Corporation
![Mayor Carl Stokes holds a press conference on a charred railroad bridge in 1969.](/sites/default/files/styles/large/public/article18-19/Mayor%20Stokes%27%20Press%20Conference.jpg?itok=tcFh0lTA)
Mayor Stokes’ Press Conference
![A 1964 editorial cartoon about Cuyahoga River industrial pollution.](/sites/default/files/styles/large/public/article18-19/Cuyahoga%20River%20Cartoon.jpg?itok=OkL25CyS)
Cuyahoga River Cartoon
![Aerial view of old cars secured along the banks of the Cuyahoga River.](/sites/default/files/styles/large/public/article18-19/Cuyahoga%20Cars.gif?itok=OGWA4IrG)
Cuyahoga Cars
![Mayor Carl Stokes with Cleveland Utilities Director Ben Stefanski in 1969.](/sites/default/files/styles/large/public/article18-19/Edgewater%20Park%20Beach.jpg?itok=8_uCvXcL)
Edgewater Park Beach
![This 2019 NASA image of Lake Erie near Maumee Bay, Ohio.](/sites/default/files/styles/large/public/article18-19/Algae%20Bloom%202019.jpg?itok=2ut2YbvT)
Algal Bloom
![Sculpture of Donald Trump ripping up the Paris climate agreement.](/sites/default/files/styles/large/public/article18-19/Baby%20Trump%20Sculpture_8.jpg?itok=cZUOy0h8)
Baby Trump Sculpture
![Ohio’s National Guard distributes water during Toledo’s water crisis.](/sites/default/files/styles/large/public/article18-19/Toledo%20Water%20Crisis.jpg?itok=oLkHvw_E)
Toledo Water Crisis