Latest stories

Natural gas building boom fuels climate worries, enrages landowners

By Kristen Lombardi and Jamie Smith Hopkins

Oil’s pipeline to America’s schools

By Jie Jenny Zou

America's biggest greenhouse-gas polluter, and the place that relies on it

By Elizabeth Hernandez and Eric Chaney

A California regulator’s curious crusade to remake the Clean Air Act

By Jim Morris and Sasha Khokha

Workers cheated as federal contractors prosper

By Talia Buford and Maryam Jameel

Senate votes to kill Obama contractor rule

By Maryam Jameel and Elizabeth Hernandez

The invisible hazard afflicting thousands of schools

By Jamie Smith Hopkins

‘This very dangerous road divides us’

By Jamie Smith Hopkins

Getting under the hood: Our methodology

By Jamie Smith Hopkins

Questions and answers about schools and traffic pollution

By Jamie Smith Hopkins

Is your school near a busy road and its air pollution?

By Chris Zubak-Skees and Jamie Smith Hopkins

Big Oil’s grip on California

By Michael J. Mishak

‘A little too cordial’

By Michael J. Mishak

The ExxonMobil near-disaster you probably haven't heard of

By Jie Jenny Zou

Rare discrimination finding by EPA civil-rights office

By Talia Buford

EPA works to remake troubled Office of Civil Rights

By Talia Buford