Dangerous gas leaks are on the rise, posing a risk to D.C. residents and the climate, says the OPC.

Workers are removing dozens of creosote-soaked telephone poles and old construction debris from the island, once used as a dumping ground.

D.C. high school students got the school board to pass a resolution calling for better climate education and greener school buildings.

Alexandria could get an extension of a state-imposed deadline to complete an overhaul of its combined sewer overflow system, a project that aims to prevent pollution from entering the Potomac River and ultimately the Chesapeake Bay.

Road salt helps keeps roads and sidewalks ice-free, but it also pollutes waterways. It’s a problem, even with warmer, rainier winters.

A new 5-mile sewage tunnel under the city is helping to prevent flooding and keep the Anacostia River clean.

Fairfax County and Montgomery County will get dozens of new zero-emission electric school buses thanks to federal grants.

New emissions standards will help usher in an EV era. Eleven years from now, you won’t be able to buy a new gas-powered car in the D.C. region.

Cattail Regional Park is home to mature forests, open fields, and an upland bog. NOVA Parks plans to develop a trail network there.

It’s time to get rid of that desiccated tree before it becomes a fire hazard. Plus, where to get free mulch!