The state’s latest lawsuit charges the administration with illegally targeting its authority to set tougher vehicle-emission ...

Toxic air spreads hundreds or even thousands of miles from where wildfires burn. Last week, Chicago felt the sting—and ...

The debate over the failed bills showed how business interests beat out some conservative lawmakers’ efforts to limit the ...

A years-long effort to sell public lands has gained steam in this year’s federal budget negotiations as a proposed solution ...

Solar has been the fastest growing source of electricity in the U.S. Proposed federal cuts to tax credits could halt that ...

Costa Rica has protected 30 percent of its marine territory, and the small Central American country wants more care for the ...

An Alabama town is at risk of losing water access after it disputed rate rises and recent charges by a neighboring water ...

As the Trump administration makes the economic case for the repeal of climate policies, sobering numbers emerge on health and energy costs.