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Tag: oceans
Health of oceans 'declining fast'
2013-10-03 07:20:00| Climate Ark Climate Change & Global Warming Newsfeed
BBC: The health of the worlds oceans is deteriorating even faster than had previously been thought, a report says. A review from the International Programme on the State of the Ocean (IPSO), warns that the oceans are facing multiple threats. They are being heated by climate change, turned slowly less alkaline by absorbing CO2, and suffering from overfishing and pollution. The report warns that dead zones formed by fertiliser run-off are a problem. It says conditions are ripe for the sort of mass...
Tags: health
fast
declining
oceans
Tiny Plankton in the Oceans Could Have Big Impact
2013-09-28 19:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate News Network: Some of the most minute forms of marine life may have a significant effect both on more developed creatures and on the oceans' ability to absorb carbon dioxide. An international team of scientists has found that the smallest species of plankton thrive when levels of carbon dioxide (CO2), the main greenhouse gas from human sources, rise and increase the acidity of the oceans. Writing in Biogeosciences, a journal of the European Geosciences Union, they say this could knock the marine food web...
Unexpected interaction between ocean currents and bacteria may weaken ocean's ability to absorb carbon
2013-09-13 16:45:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: For the first time, researchers have successfully demonstrated an interaction between ocean currents and bacteria: The unexpected interaction leads to the production of vast amounts of nitrogen gas in the Pacific Ocean. This takes place in one of the largest oxygen free water masses in the world -- and these zones are expanding. This can ultimately weaken the ocean's ability to absorb CO2. Three places in the world harbor extensive oxygen free water masses, called Oxygen Minimum Zones. In these...
Tags: to
ability
ocean
interaction
Global Warming Linked to Changes in Ocean's Chemical Cycles
2013-09-09 21:32:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World News: Adding to the list of environmental hazards associated with rising global temperatures is a shift in the ocean's natural chemical changes, a paper published in the journal Nature Climate Change showed. A rise in ocean temperatures -- a byproduct of rising atmospheric temperatures -- will upset the ocean's cycles of carbon dioxide, nitrogen and phosphorus, the study found. The reason, according to the researchers, has to do with the effect of water temperature on phytoplankton, the microscopic...
Tags: global
chemical
linked
warming
New Forecast System May Be Able to Predict Changes in Ocean's Ecosystem
2013-08-31 23:32:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: A group of researchers have developed a prototype of a forecast system designed to predict changes in the ocean's ecosystem months in advance. Called the JISAO Seasonal Coastal Ocean Prediction of the Ecosystem, or J-SCOPE for short, the tool feeds information from global climate models into a coastal ocean model of the Pacific Northwest coastline complete with the region's shelf breaks and river plumes. Added in the mix is a new oxygen model developed by researchers from the University of Washington...
Tags: in
system
predict
forecast
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