Coral reefs worldwide are being affected by rising levels of carbon dioxide due to climate change. Experiments have had trouble pinning down the effects, but an innovative device may change that.

Angela Hayes shares the journeys fish take in Palo Alto: Salmon and trout are leaping amongst the millionaire’s houses. And Rob Franklin brings us the story of a local census that gauges where people go when they live on the streets.

Attendees of Saturday’s TEDxStanford event donned their global change goggles, considered calamari, and settled into a solar home during talks that took fresh approaches to environmental issues.

Two summers ago, algae overwhelmed Lake Erie with a toxic scum that suffocated fish and fouled shorelines. A new study finds that, without action, the lake can expect more of the same.

A population boom in the 1970s helped make the Bering Sea’s walleye pollock the most valuable fishery in the United States. Scientists are still debating what caused the unexpected surge.