Atlantic Ocean

Danish researcher crack hydrogen storage?

Danish researchers at the Technical University of Denmark may have taken an important step towards hydrogen based transport systems. In a news article they say that they store the hydrogen as ammonia absorbed in sea-salt tablets [cached]. “Within the tablet, hydrogen is stored as long as desired, and when hydrogen is needed, ammonia is released through a catalyst that decomposes it back to free hydrogen. When the tablet is empty, you merely… Continue reading

District Cooling gains momentum in Europe

There is a steadily growing demand for air conditioning or comfort cooling in all of Europe, mainly in commercial and institutional buildings. Most cooling is based on electricity to run individual appliances. With Kyoto requirements and global warming to contend with, a substantial increase in use of electricity for cooling is not very helpful. Michel Gauthier tells us about District Cooling from cold seawater, a presentation held at the European Energy Foundation.

Thanks to David… Continue reading

Energy Ocean 2004

Dave Kuhl reminds us that, although it is probably too late if you weren’t planning to go already, Energy Ocean 2004 conference is on for 28-29 June in Palm Beach, Florida, USA. There are some interesting presentations announced:

The Natural Energy Laboratory of Hawaii Authority (NELHA) located on the Big Island of Hawaii will talk about the Lab’s programs, OTEC projects and its newest NELHA Gateway program as well as other exciting programs centered… Continue reading

Is your salmon farmed or wild?

With a significant price difference between wild and farmed salmon and the new EU regulation on fish labelling, which requires that fish be labelled as to their origin starting on 1 January 2002, is should come as no surprise that fraudulent labelling has been found to exist. There are currently no reliable way to trace the origin of the fish, but the Cofaw project [Google rendition of PDF file] is working on reliable methods.

Over optimism on North Atlantic cod stock recovery

Jake Rice, of the Canadian Department of Fisheries and Oceans, warns that collapsed cod stocks do not recover as quickly as previously thought. There seem to be several reasons for this, one is that the depleted stocks spawn young in a less efficient way and they are more vulnerable to predators, but also that even very limited cod fishing doesn’t allow for the stock to recover. The fishing fleets have also been upgraded, so even… Continue reading

Heatwave, an indication of what to come

New Scientist has an article about how the recent European “Heatwave’s warning for the future of farming“. Specifically they quote research by Jørgen Olesen fo the Danish Institute of Agricultural Sciences in Tjele and Marco Bindi of the University of Florence in Italy. Their analysis predict that in Southern Europe, temperature changes will lead to water shortages and lower crop yields, and agriculture could cease althogether in the most parched regions. “With drier… Continue reading

Aquaculture going mainstream

The Economist has a pretty measured article about aquaculture, its drawbacks and benefits. It is even a front page story this time. In China aquaculture is mainstream already and mariculture is moving towards this. Recently introduced EU regulations on fish labeling (you have to show whether the fish is farmed or captured) will be a benefit rather than a hinderance in the long term, as it will help the aquculture industry clean up its pollution problems.

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