Oliver Milman

Oliver Milman is an environment reporter for the Guardian US.

People in matching baseball caps march down a street holding environmental placards.

Ahead of Climate Summit, Marchers Take to City Streets

Preceding this week’s Global Climate Action Summit, thousands rallied for the environment in cities around the world.

A man in a raincoat walks through knee-high water behind his house.

More Than 300,000 U.S. Homes Could Flood Regularly by 2045

A new study finds that at the high end of predicted sea-level rise, many thousands of homes in the U.S. could flood 26 times a year.

A truck engine is tested for pollution near the Mexican-U.S. border in Otay Mesa, California

California's Blueprint for Bipartisan Climate Change Action

By extending the cap-and-trade system, the state reasserted its commitment to pushing back against the Trump administration’s environmental policies.

Tackling Rising Waters in Atlantic City and Miami Beach

Sea level rise is making floods more common and as the New Jersey resort braces for the next Sandy, the well-heeled Florida city is throwing money at the problem.