The health of common water fleas like this one are being examined by University of Toronto researchers using a powerful instrument called a tandem mass spectrometer.

Since the saltiness of ocean surface waters is a key variable in the climate system, understanding how this changes is important to understanding climate change. Thanks to ESA’s Climate Change Initiative, scientists now have better insight into sea-surface salinity with the most complete global dataset ever produced from space.

It is believed that the ice shelves may be thinning due to changes in ocean heat content, either by ocean warming or from changes in how the ocean circulates around and below the shelves, but further research is needed to establish the specific reasons.

New research reveals how penguins have dealt with more than a century of human impacts in Antarctica and why some species are winners or losers in this rapidly changing ecosystem.

Sometimes, pollution is blatantly obvious: the iridescent slick of an oil spill, goopy algae washing up on a beach or black smoke belching from a smokestack.

The University of Wisconsin–Madison’s Wisconsin Initiative on Climate Change Impacts will contribute climate data informing the work of a state task force charged with advising Wisconsin Gov. Tony Evers on climate change adaptation and mitigation.

Rising waters are swallowing up another island in Chesapeake Bay.

A winter storm brought flash flooding, heavy snow, and hurricane-force winds to the Pacific Northwest.

An undersea eruption at Lateiki Island in late October 2019 has brought new life to an older island in the Tonga chain.

Biodiversity across the globe could be in a worse state than previously thought as current biodiversity assessments fail to take into account the long-lasting impact of abrupt land changes, a new study has warned.