15 de nov de 2007

Global warming 'cure' found by scientists

By Charles Clover, Environment Editor
Last Updated: 5:01pm GMT 07/11/2007

Full version with graphics : http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/11/07/eawarming107.xml

A "technical fix" that could stop global warming by taking billions of tons of carbon dioxide out of the atmosphere and save the coral reefs from being destroyed by acidification has been developed by scientists.

The process could be used on an industrial scale to remove excess carbon dioxide caused by the burning of fossil fuels from the atmosphere in "a matter of decades rather than millennia," according to researchers from Harvard and Penn State universities.

The process relies on speeding up a process that happens naturally, whereby carbon dioxide dissolved in sea water breaks down volcanic rock and soils to make alkaline carbonic salts.

The water flows into the ocean and increases its alkalinity. Sea water containing more alkali can absorb more carbon, so more carbon from the atmosphere is "locked up" and becomes harmless bottom sediments, according to the journal Environmental Science and Technology.

Researchers estimate that it would take a cube of volcanic rock 10 kilometres across to return the concentration of carbon dioxide in the Earth's atmosphere to pre-industrial levels.

[ Read More Here / Leia Mais Aqui]

[Original Article / Artigo original]

13 de nov de 2007

Ocean Acidification: The Biggest Threat to Our Oceans?

via Latest Issue of BioScience by Sponberg, Adrienne Froelich on 11/5/07
This article is currently available as a free download on IngentaConnect

4 de nov de 2007

11th International Conference on Applied Phycology

The 3rd Congress of  the International Society for Applied Phycology and the 11th International  Conference on Applied Phycology will be held at the National University of Ireland, Galway 21st to 27th  of June 2008 and will be hosted by the Martin Ryan Institute, National University of Ireland, Galway. The webpage is up and running for several weeks and all information, abstract submission and registration can be found at www.conference.ie by clicking the ISAP link.  Various mini-symposia are scheduled (see web site), as  are workshops.