With coral reefs under threat, UN report urges coordinated protection measuresLast Updated on 2010-10-27 00:00:00UNITED NATIONS -- A new United Nations report urges a global partnership, backed by commitment and resources, to tackle the threats posed to coral reefs by climate change, including damage from increasingly severe tropical cyclones and ocean acidification.
About 20 per cent of the original area of coral reefs has been lost, with a further 25 per cent threatened in the next century, according to the report “Climate, Carbon and Coral Reefs” by the World Meteorological Organization (WMO) and the Convention on Biological Diversity (CBD).
Tropical coral reefs cover about 0.2 per cent of the world’s ocean, contain about 25 per cent of marine species and are worth an estimated $30 billion annually to the global economy in terms of coastline protection, tourism and food.
For the past 20 years, they have been “under siege” from a growing global threat:... More »
Scientists Uncover Deep Ocean Current Near AntarcticaLast Updated on 2010-04-24 00:00:00SINGAPORE (Reuters) - Scientists have discovered a fast-moving deep ocean current with the volume of 40 Amazon Rivers near Antarctica that will help researchers monitor the impacts of climate change on the world's oceans.
A team of Australian and Japanese scientists, in a study published in Sunday's issue of the journal Nature Geoscience, found that the current is a key part of a global ocean circulation pattern that helps control the planet's climate.
Scientists had previously detected evidence of the current but had no data on it.
"We didn't know if it was a significant part of the circulation or not and this shows clearly that it is," one of the authors, Steve Rintoul, told Reuters.
Rintoul, of the Antarctic Climate and Ecosystems Cooperative Research Center in Hobart, said it proved to be the fastest deep ocean current yet found, with an average speed of 20 cm (7.9 inches) a... More »
How Climate Change Affects Coral ReefsLast Updated on 2009-12-12 00:00:00Story of how climate change affects reefs, which in turn affect coastal people like those in the Coral Triangle. Produced by World Ocean Observatory and Compass Light Productions.
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