Climate & environment

It reached 99 degrees Wednesday afternoon, a single degree above the previous high for Sept. 6 set in 1983.

A key state board approved a revised contract for Maryland’s vehicle emissions stations on Wednesday, allowing the stations to implement a change in the program: New cars, trucks and SUVs will be exempt from testing for the first six years instead of the first three years.

The Public Service Commission decided that residents could choose whether the regulators, which maintain a set pressure in a gas system, can be located outside or inside their homes.

It’s going to be super hot — so hot the temperature could break a record set in 1881.

Currently, owners of brand-new vehicles don’t need to go through the Vehicle Emissions Inspection Program for the first three years after purchase. That is likely to soon stretch to six years, as the state implements new rules that were adopted earlier this year.

Seeing spotted lanternflies in your garden, along the street and scudding thorough the air? Welp, they're about to get worse. But at least they seem to be sparing Maryland's wineries this year.

What to do to stay cool this Labor Day weekend.

September has always been a difficult month to identify with one season. Is it summer or fall? The beginning or the end?

Manatees are typically found in waterways around Florida, but have been known to wander into the Chesapeake Bay over the years. Could climate change bring more?

Maryland’s first locally acquired case of malaria in 40 years was caused by a strain responsible for 95% of deaths worldwide.

Marvin Hayes, the founder of the Baltimore Compost Collective, wants Baltimore to ditch trash incineration, fight climate change and grow healthier food. “We’re going to spread some compost love in this city,” he says.

Weather-related travel issues are only going to get worse. Welcome to the new normal.

Greater vigilance is needed to protect all Baltimore communities and the most vulnerable populations from poor air quality, says the co-lead of Free Baltimore Yoga.

For the first time, community members who want to address the challenges posed by airplane noise and traffic are getting seats on the Maryland Aviation Commission, an appointed body that helps govern BWI.

One year after its passage, the Inflation Reduction Act has strengthened efforts to combat climate change while creating jobs and making clean energy more affordable and accessible, say Sen. Chris Van Hollen and Kim Coble, the executive director of the Maryland League of Conservation Voters.

Language in the Pentagon spending bill working its way through Congress would require the Joint Spectrum Center to finally move from the old David Taylor Research Center, clearing the way for the largest waterfront development in Annapolis history

One of the nation’s largest foundations, though headquartered in Baltimore, has strong Hawaii ties and gave away $850,000 in grants to communities across the state affected by the wildfires.

To get a sense of what it was like around the region, we asked our staff and our readers to share photos and tell us a bit about what they experienced.

A line of powerful thunderstorms roared through the Baltimore region on Monday evening, downing trees and leaving thousands of customers without power.

Curtis Bay may be Baltimore’s most polluted community, surrounded by industrial facilities strangling the rowhouse neighborhood. The city wants to close a local recreation center to make way for even more industry, continuing what activists say have been decades of environmental racism.