Scientists are at a loss to explain one of the biggest mysteries surrounding the critically endangered North Atlantic right whale.

When Hurricane Irma ravaged the Caribbean island of Barbuda, the storm left it uninhabitable." And, now, for the first time in 300 years, no one lives there.

HEALY, ALASKA—Bitter winters still dominate life in the Alaskan interior, but a practiced eye can spot the signs of a warming climate, particularly in the ground. Beneath the rolling fields of tussock scattered just north of the Alaska Range, what was once permanently frozen is starting to thaw. The impacts could ripple across the planet.

Sea salt around the world has been contaminated by plastic pollution, adding to experts’ fears that microplastics are becoming ubiquitous in the...

Record numbers of the potentially-fatal Portuguese man o' war have washed up on the Cornish coast, according to conservationists.

Atlantic salmon, believed to be part of a cohort that escaped from a U.S.-based fish farm on Aug. 19, are being hauled in by anglers fishing out of French Creek on mid-Vancouver Island. Cameron Whe…

A new study of the marine invertebrates living in the seas around Antarctica reveals there will be more 'losers' than 'winners' over the next century as the Antarctic seafloor warms. The results are published in the journal Nature Climate Change this week.

For centuries, marine species have moved around either by hitching ride on the hulls of ships or as stowaways in ballast water. In many instances, species have been deliberately introduced for aquaculture or other commercial purposes.

On a field trip with Northwest Indian College Geology class to Chuckanut Drive saw water with apparent difference in color.

Kachemak Bay has witnessed massive die-offs of sea stars, murres and razor clams. Whats going on?

Dolphin beaching in Sodwana Bay, South Africa

Koyuk River foze solid by Oct-14 by the 28th there was open water.

Sea ice is here and then disapears.

Special report: A huge disruption to California's coastal ecosystem is under way after several years of unusually warm ocean conditions and drought.

The 'blob' caused it this time around. But oceans will keep getting warmer in the future.