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devastating coral bleaching due to global warming. These corals are dying.

Environment

Safe havens for coral reefs will disappear with 2°C of global warming

Cooler regions of the sea that protect coral reefs will be virtually wiped out by the end of this century, even under optimistic climate change scenarios

News

This data image shows the monthly average sea surface temperature for May 2015. Between 2013 and 2016, a large mass of unusually warm ocean water--nicknamed the blob--dominated the North Pacific, indicated here by red, pink, and yellow colors signifying temperatures as much as three degrees Celsius (five degrees Fahrenheit) higher than average. Data are from the NASA Multi-scale Ultra-high Resolution Sea Surface Temperature (MUR SST) Analysis product.

Environment

Extreme marine heatwaves are now normal for the world's oceans

News

Float carrying sensors

Technology

Outsider wins DARPA challenge to predict where floats drift at sea

News

Ambergris: What fragrant whale excretions tell us about ancient oceans

Humans

Ambergris: What fragrant whale excretions tell us about ancient oceans

Features

A man swimming next to a floating, solar-powered sensor

Technology

US military offers $50,000 to predict where sensors drift in the ocean

News

Satellite view of Australian wildfires

Environment

Most CO2 from Australia’s megafires has been offset by algal blooms

News

A grenadier fish swimming along the sea floor near an anemone

Life

A glimpse at Greenland's deep-sea ecosystems threatened by fishing

News

Giant coral is the widest ever found in the Great Barrier Reef

Life

Giant coral is the widest ever found in the Great Barrier Reef

News

We have just two years to stop deep-sea mining from going ahead

Environment

We have just two years to stop deep-sea mining from going ahead

Comment

Controversial geoengineering scheme will dump iron in the sea

Environment

Controversial geoengineering scheme will dump iron in the sea

A former UK chief scientist is planning experiments to drop iron filings in oceans to tackle climate change and restore marine life, in a major geoengineering project that is likely to prove controversial

News

Environment

How your seaweed-filled beach pics could help monitor climate change

Regulars

Technology

Stealthy marine robot begins studying mysterious deep-water life

News

Environment

The world has missed its target for protecting oceans to save species

News

Humans

Rubber slabs washed up in Brazil traced to second world war shipwreck

News