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The latest international attempt to protect one million square kilometres of Southern Ocean has failed to reach a consensus

Dead zone in Arabian Sea

A growing ‘dead zone’ in the Arabian Sea has allowed low-oxygen plankton to dominate the base of the marine food chain. The ecosystem change has led scientists to warn that plankton may supplant other food sources local fish rely on
Changes to the distributions of tropical fish species due to ocean warming is leading to overgrazing of kelp forests and seagrass meadows, a new study has found
Biological communities in the North Sea have undergone significant changes since the turn of the millennium, according to long-term studies carried out by a team of German scientists
New study detects tens of kilometres of previously uncharted deep valleys under Greenland ice sheet, suggesting the ice is significantly more vulnerable to warm ocean waters
The discovery of the first terrestrial sample of a water-rich mineral has yielded new evidence that large volumes of water could exist deep within the Earth
Oxygen depletion in the Baltic Sea is ten times worse now than it was 100 years ago, the result of nutrient inflows from the land
A new NASA study has found that the heat from warm river water draining into the Arctic Ocean is contributing to the melting of Arctic sea ice each summer
Climate change is threatening the survival of fish that live near the equator, according to a new study by scientists at James Cook University in Queensland
The world’s oceans are absorbing about 90 per cent of the heat being added to the globe by climate change and up to a third of the carbon dioxide we’re producing, with potentially catastrophic consequences
A team of scientists has discovered huge reserves of freshwater beneath the world’s oceans
Scientists from the US Geological Survey (USGS) have identified the oldest large body of seawater, more than a kilometre under Chesapeake Bay in the USA
The world’s oceans could see a 170 per cent increase in acidification by the end of the century, according to a research summary led by the International Geosphere-Biosphere Programme (IGBP)
A new study published in Nature Geoscience suggests that the seafloor off the coast of northern Siberia is releasing more than twice as much methane as previously estimated
The fact that more tropical rain falls on the Northern Hemisphere than in the south has been linked to ocean currents, overturning the previous theory that it was caused by the shape of the ocean basins
Coastal erosion in Eastern Siberia is accelerating rapidly as increasing Arctic temperatures reduce sea-ice extent, allowing waves to wash away the permafrost
Ocean warming has led to the decline of a species of North Atlantic zooplankton that’s a vital food source for fish such as cod and hake, according to a new study
A new study published in Science suggests that the middle depths of the Pacific Ocean have warmed 15 times faster in the past 60 years than they did during apparent natural warming cycles in the previous 10,000

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