Climate & Environment

Forty years ago, there were just a few loons in the state. Now, biologists working with them say it’s time to let them nest without help from humans.

The laboratory at the New England Aquarium in Boston is a breeding site for the mesmerizing animals, which have been in the news this summer for their trademark — and painful — stings.

Save the Bay celebrates its 50th signature swim, marking decades of advocacy, infrastructure upgrades and environmental progress

Casella is testing new technology to remove PFAS from contaminated liquid at its Coventry landfill. State regulators don’t plan to set limits on PFAS in air emissions from the facility.

Boating, fishing, or taking in the scenery — Candlewood Lake is a favorite summer spot for residents of upper Fairfield County. But did you know Connecticut’s largest lake is actually man-made?

Summer camps are all about embracing the outdoors. But as climate change fuels dangerous heat and unhealthy air, the outdoors is becoming something camps must protect children from.

The Atlantic Shark Institute placed a data-gathering tag on a hammerhead shark for the first time. And the encounter off Block Island was caught on video

Benthic cyanobacteria bloom underwater and appear much more toxic than the kind that float on the surface.

The New England coast used to be crowded with wild oyster reefs. But the reefs have been decimated by overfishing, pollution, development and climate change. Aran Mooney, who studies underwater acoustics at the Woods Hole Oceanographic Institution, is researching whether sound can help with efforts to restore oyster beds

A project launched Wednesday by the Green Ribbon Commission is looking into the feasibility of thermal energy networks to heat and cool some of the area's largest buildings.