OCEANS

Increasingly warm ocean temperatures are leading to coral bleaching on a global scale for only the third time in recorded history, and for the first time not during an El Niño period

Whale tales

As the Natural History Museum’s diplodocus cast skeleton makes way for a blue whale skeleton in 2017, Geographical looks at the ‘emperor of the seas’
Marine organisms that cost the maritime industry $22billion a year are set to change if ocean acidification continues
China’s fish farms provide three-quarters of the country’s fish, but the industry’s reliance on fishmeal from wild-caught fish is unsustainable
When an explorer discovers an uncharted land, there’s an expectation that wherever the explorer ventures next, the last discovery will stay where it was found. This isn’t always the case
On average two tsunamis happen somewhere in the world each year, Geographical looks at the culture and science behind the ‘harbour wave’
A new report into sea level rises claims that by 2050, regular flooding will threaten most US coastal areas
Atmospheric greenhouses gases have been the focus for fears over changes to the Earth’s climate. But research from Rutgers University suggests that the oceans equal the atmosphere for importance in regulating the planet’s temperature

Tsunami secure

Twenty-five minutes isn’t long to find shelter from a tsunami, but that’s how long Washington state residents living in coastal areas would have if a major earthquake hit the Cascasia Subduction Zone
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

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