Sci/tech

Medieval warming 1000 yrs ago was a result of natural climate mechanism
April 5, 2009 07:12 AM - Thaindian News

In a new research, scientists have unraveled the natural climate mechanism that caused unusually warm weather in medieval times in Europe 1000 years back.

Climate clock is ticking
April 5, 2009 07:00 AM - WILLIAM MARSDEN, The Montreal Gazette

In the summer of 2007, a large portion of Arctic Sea ice - about 40 per cent - simply vanished. That wasn't supposed to happen. At least not yet. As recent as 2004, scientists had predicted it would take another 50 to 100 years for that much ice to melt. Yet here it was happening today.

First Accurate Test For Arsenic In Soil Developed
April 3, 2009 10:10 AM - Science Daily

If you have a cat or dog who likes to hide under the deck or children who play on equipment made with pressure-treated wood, you’ll be glad to hear that analytical chemist Julian Tyson and colleagues at the University of Massachusetts Amherst recently developed the first-ever accurate test for arsenic compounds in soil, promising a significantly improved environmental and health impact assessment. The method holds some promise for detecting naturally occurring high arsenic levels in Asian rice, as well.

Ice-free Arctic Ocean Possible In 30 Years, Not 90 As Previously Estimated
April 3, 2009 05:25 AM - ScienceDaily

A nearly ice-free Arctic Ocean in the summer may happen three times sooner than scientists have estimated. New research says the Arctic might lose most of its ice cover in summer in as few as 30 years instead of the end of the century.

'Halo effect' explains brightest patches of sky
March 31, 2009 06:28 AM - Nora Schultz

Every cloud has a silver lining, the saying goes, but as it turns out, it's more of a giant halo.

'Alarming' Use Of Energy In Modern Manufacturing Methods
March 31, 2009 06:18 AM - ScienceDaily

Modern manufacturing methods are spectacularly inefficient in their use of energy and materials, according to a detailed MIT analysis of the energy use of 20 major manufacturing processes.

Microbes In Mud Flats Clean Up Oil Spill Chemicals
March 29, 2009 09:46 PM - ScienceDaily

Micro-organisms occurring naturally in coastal mudflats have an essential role to play in cleaning up pollution by breaking down petrochemical residues.

Among Climate Scientists, a Dispute Over Tipping Points
March 29, 2009 10:25 AM - ANDREW C. REVKIN, The New York Times

The language was apocalyptic. Last month, a leading climate scientist warned that Earth’s rising temperatures were poised to set off irreversible disasters if steps were not taken quickly to stop global warming.

Who ate all the algae?
March 28, 2009 10:42 AM - The Economist

MESSING around with ecosystems is an unpredictable business. That proved true again this week when a group of Indian and German researchers gave their first report from the biggest ever experiment in geo-engineering: an expedition to pour iron into the Southern Ocean, a vast area that encircles Antarctica, to stimulate a giant bloom of phytoplankton.

Ice that burns could be a green fossil fuel
March 26, 2009 04:45 PM - Michael Marshall, New Scientist

Natural gas locked up in water crystals could be a source of enormous amounts of energy – and if a new technology delivers what scientists are claiming, then it could even be emissions-free too.

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