Oceans

Oceans

Thinning ice creates undersea Arctic greenhouses

Arctic sea ice thinned by climate change increasingly produces conditions favorable for phytoplankton blooms in the waters below, new research suggests.

Climate

Arctic sea ice hits record wintertime low

Warm temperatures and heat waves reduced sea ice extent in the Arctic to its smallest maximum extent ever seen.

Planetary Science

Saturn’s ‘Death Star’ moon may not conceal an ocean after all

A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.

Planetary Science

Saturn’s ‘Death Star’ moon may not conceal ocean after all

A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.

Environment

Most fish turned into fishmeal are species that we could be eating

Millions of tons of food-grade fish are turned into fishmeal for aquaculture and agriculture.

Climate

Antarctic sea ice shrinks to record low

The Antarctic sea ice extent has reached a new low just two years after hitting a record high.

Ecosystems

Seagrasses boost ecosystem health by fighting bad bacteria

Seagrasses might reduce bacteria levels in ocean water.

Physics

Sound waves could take a tsunami down a few notches

A tsunami’s ferocious force could be taken down a few notches with a pair of counter waves.

Oceans

Fleeting dead zones can muck with seafloor life for decades

Low-oxygen conditions can fundamentally disrupt seafloor ecosystems and increase carbon burial, new research shows.

Oceans

Cone snails wander in circles, lose focus with boosted CO₂

Deadly cone snails wander in circles and become less capable hunters when exposed to higher levels of carbon dioxide in seawater.

Oceans

Cone snails wander in circles, lose focus with boosted CO₂

Deadly cone snails wander in circles and become less capable hunters when exposed to higher levels of carbon dioxide in seawater.

Oceans

Climate change may boost toxic mercury levels in sea life

Increased runoff to the ocean due to climate change could raise neurotoxic mercury in coastal sea life by disrupting the base of the food web.