Earth's Greatest Enemy uncovers a shocking blind spot in the climate conversation: the U.S. military. Exempt from international climate agreements and rarely scrutinized in mainstream reporting, the Pentagon is revealed as the world’s single largest institutional polluter — spewing carbon, contaminating water, and scarring landscapes across the globe.

Combining investigative journalism, striking visuals, and stories from impacted communities, the film challenges audiences to rethink the hidden costs of a global military empire and its planetary consequences. Provocative, urgent, and eye-opening, this is a documentary that will change how you see both the military and environmentalism.

The film is part of Code Pink’s War Is Not Green campaign, which seeks to bring together the “environmental movement” and “anti-war movement,” two supposedly “separate” movements that ultimately have the same goals of fighting for our existence. Earth’s Greatest Enemy makes this clear: we can’t ignore what can often be the Elephant in the Room in climate spaces: war, militarism, and imperialism.