Oceans

A third form of marine energy : OTEC

According to GreenTech Media, Ocean Thermal Energy Conversion is after wave and tidal energies the third form of ocean power. Albeit it was discovered a century ago, there have been few attempts at tapping this energy source. To Wikipedia, OTEC ” uses the temperature difference that exists between deep and shallow waters to run a heat …

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The nine plagues threatening our oceans

The Huffington Post Green published on Monday an article on the 9 problems destroying our oceans. From overfishing and irresponsible fish farming and from offshore drilling to garbage and mercury pollution, they are overwhelming. Another important problem is acidification. Indeed, as our oceans absorb the carbon dioxide we emit every minute, their surface become more …

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Scotland to harness 1.2 GW of marine energy

Scotland announced last week that 1.2 GW of tidal and wave energy capacity would be built there by 2020. To achieve this, 10 projects will be started and will be the first commercial applications of these energy sources. Scotts are determine to have 31 percent of their electricity coming from renewables by 2011 and are willing …

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Carbon sinks are becoming less efficient

This is ” the latest inconvenient truth about climate change ” : Nature absorbs less and less carbon dioxide and this as we keep on increasing our emissions. The Washington Post recently published an interesting article on this. Both forests and oceans absorb carbon dioxide and act as carbon sinks. This phenomenon is less and less …

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Healthy oceans matter in climate

A new report published by many agencies of the United Nations – including the FAO, the UNEP and the UNESCO – shows that maintaining healthy oceans is a vital topic for climate change mitigation. Indeed, more than half of the carbon dioxide captured by Nature is captured by oceans and seas. Coastal ecosystems like mangroves …

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Solutions to save corals

As the United Nations are gathering in Manado, Indonesia for the World Oceans Conference many websites published articles on corals, an important part of the oceans which are today at risk as oceans are warming inexorably. Indeed, warmer waters are due to destroy coral reefs and their rich ecosystems. To the WWF up to 100 …

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Both poles are melting faster and faster

As bad news came from Antarctica I thought it would be interesting to check out how the poles are warming. I wrote in December that Antarctica keeps on melting and it seems this phenomenon is aggravating. As the BBC noted “Scientists say the collapse could mean the Wilkins Ice Shelf is on the brink of …

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WWF: 40% of fish catch wasted !

By reading the RSS feed of the WWF I came across an information that I found staggering at a times where overfishing threatens globally our seas and oceans. (example: Bluefin tuna could disappear in 3 years) To the organization : “Nearly half of the world’s recorded fish catch is unused, wasted or not accounted for”. …

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20,000 leagues under the sea with Google

I already noted how Google is preoccupied by the environment and how it is investing in renewables. This commitment becomes more concrete with the new Google Earth which enables to learn on oceans’ environmental issues. Among the partners of this project are the Cousteau Society and the International Union for Conservation of Nature and Natural …

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A huge wind energy project in the North Sea

According to a Netherlands based agency, the wind energy potential of the North Sea is superior to the total energy provided by the Persian gulf and would enable Northern Europe to become energy independent. With 13,400 TWh per year, this would indeed be more than the 11,300 TWh equivalent energy coming in from the Middle …

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