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Tag: acidification
Acidification of oceans threatens change entire marine ecosystem
2013-10-26 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Vancouer Sun: Ocean acidification due to excessive release of carbon dioxide into the atmosphere is threatening to produce large-scale changes to the marine ecosystem affecting all levels of the food chain, a University of B.C. marine biologist warned Friday. Chris Harley, associate professor in the department of zoology, warned that ocean acidification also carries serious financial implications by making it more difficult for species such as oysters, clams, and sea urchins to build shells and skeletons from...
Tags: change
entire
marine
ecosystem
Ocean acidification due to carbon emissions is at highest for 300m years
2013-10-03 07:16:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: The oceans are more acidic now than they have been for at least 300m years, due to carbon dioxide emissions from burning fossil fuels, and a mass extinction of key species may already be almost inevitable as a result, leading marine scientists warned on Thursday. An international audit of the health of the oceans has found that overfishing and pollution are also contributing to the crisis, in a deadly combination of destructive forces that are imperilling marine life, on which billions of people...
Ocean warming and acidification deliver double blow to coral reefs
2013-09-30 10:59:00| Climate Ark Climate Change & Global Warming Newsfeed
Arstechnica: The dual threats of ocean acidification and anthropogenic warming have the potential to wreak havoc on marine life over the coming decades. Corals require acid-sensitive calcium carbonate for structure and heat-sensitive symbionts for sustenance, so they seem to have the most to lose from a warmer, more acidic ocean. Indeed, numerous studies have already indicated that calcifying organisms, including corals, would be among the worst to suffer. Although many studies have looked at heat and acidification,...
Tags: double
deliver
ocean
warming
Ocean acidification exacerbating climate change damage
2013-09-02 04:20:00| Climate Ark Climate Change & Global Warming Newsfeed
Mongabay: As if ocean acidification and climate change werent troubling enough (both of which are caused by still-rising carbon emissions), new research published in Nature finds that ocean acidification will eventually exacerbate global warming, further raising the Earths temperature. Scientists have long known that tiny marine organismsphytoplanktonare central to cooling the world by emitting an organic compound known as dimethylsulphide (DMS). DMS, which contains sulfur, enters the atmosphere and helps...
Tags: change
damage
ocean
climate
Ocean acidification threatens California
2013-09-01 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Sacramento Bee: Making a living from the ocean is not for the faint of heart. Its comparable to farming the soil, in that weather, disease and market conditions can make or break your bottom line. Food production, whether farming on land or in water, is dependent upon a number of factors all working in sync to produce a healthy, resilient crop. If just one factor is off, it can ruin your whole harvest. A recently recognized threat to ocean health has the potential to do more than just inflict a bad year on shellfish...
Tags: california
ocean
threatens
acidification
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