Group items tagged

ovember 2011 > Pennisi, 334 (6059): 1042 OAS_AD('Top'); Sciencewww.sciencemag.org Prev | Table of Contents | Next Science 25 November 2011: Vol. 334 no. 6059 p. 1042 DOI: 10.1126/science.334.6059.1042 News & Analysis Animal EcologyGlobal Tracking of Small Animals Gains Momentum Elizabeth Pennisi Summary An ecologist has developed a new space-based system to track animals too small to be monitored globally with current instruments. Next month, he and his colleagues will begin testing whether a new animal tag can eventually communicate with the International Space Station. He has also been promised $2.3 million to start to set up an antenna

An ecologist has developed a new space-based system to track animals too small to be monitored globally with current instruments. Next month, he and his colleagues will begin testing whether a new animal tag can eventually communicate with the International Space Station. He has also been promised $2.3 million to start to set up an antenna on the space station for ICARUS, as the project is called. If all goes well, he says, by the end of 2014, the antenna will be tracking about 1000 small animals, with the potential to follow thousands more, enabling him and collaborators to assess how the creatures spend their lives and where they die.

Methane is 21 times more heat-trapping that carbon dioxide.

Actually, any CH4 released today is at least 56 times more heat-trapping than a molecule of C02 also released today. And because of the way it reacts in the atmosphere, the number is probably even higher, according to research conducted by  Drew Shindell , a scientist at NASA’s Goddard Space Center.

And we appear to be approaching some irrevocable tipping points that will create powerful negative feedback loops, the most worrisome being  the release of methane  stores at the bottom of the ocean and locked into sub-Arctic permafrost.

New research from Carnegie's Global Ecology department concludes that evaporated water helps cool the earth as a whole, not just the local area of evaporation, demonstrating that evaporation of water from trees and lakes could have a cooling effect on the entire atmosphere

It is well known that the paving over of urban areas and the clearing of forests can contribute to local warming by decreasing local evaporative cooling, but it was not understood whether this decreased evaporation would also contribute to global warming

Globally, this cycle of evaporation and condensation moves energy around, but cannot create or destroy energy. So, evaporation cannot directly affect the global balance of energy on our planet.