Ozone and UV bulletin
The stratosphere ozone layer is slowly recovering and the recovery will be complete in most parts of the atmosphere in the coming decades, according to the latest bulletin by the World Meteorological Organization
Solar Radiation
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Research on global sun block needed now
Geoengineering studies of solar-radiation management should begin urgently, argue David W. Keith, Edward Parson and M. Granger Morgan
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Pointing fingers at soot
N. GOPAL RAJ Soot absorbs 80 per cent of the solar radiation it receives; directly warms the atmosphere SHORT LIFE: While CO2 stays in the atmosphere for centuries, soot stays aloft only for days to weeks; ozone persists for just weeks to months. - PHOTO: AFP
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Dark age? Jet exhaust cuts sunshine
Clouds generated by a single jet aircraft can reduce sunshine levels over thousands of square miles, researchers have found.
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Abiotic gas formation drives nitrogen loss from a desert ecosystem
In arid environments such as deserts, <span>nitrogen</span> is often themost limiting nutrient for biological activity. The majorityof the ecosystem <span>nitrogen</span> flux is typically thought to be drivenby production and <span>loss</span> of reactive <span>nitrogen</span> species by microorganismsin the soil.
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An imperative for climate change planning: tracking Earth's global energy
Planned adaptation to climate change requires information about what is happening and why. While a long-term trend is for global warming, short-term periods of cooling can occur and have physical causes associated with natural variability. However, such natural variability means that energy is rearranged or changed within the climate system, and should be traceable.
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Significance of ozone layer for survival
Significance of ozone layer for survival underlined
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Finnish tech to keep track of weather during CWG
Helsinki: A Finnish company has signed a $1.4-million deal with the Indian Meteorological Department (IMD) to provide 60 hi-tech automatic weather stations (AWS) and equipment to predict weather accurately during the 2010 Commonwealth Games in Delhi.
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Cheap solution to global warming (Editorial)
GLOBAL warming will mean that more people die from the heat. There will be a rise in sea levels, more malaria, starvation, and poverty. Concern has been great, but humanity has done very little that will actually prevent these outcomes. Carbon emissions have kept increasing, despite repeated promises of cuts.
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Climate change leads to decline in size of sheep: study
Another clue has been found in the Case of the Shrinking Sheep, an animal mystery in which climate change features as the principal cause. The tale of scientific sleuthing is unfolding on two Scottish islands, Soay and Hirta, in the remote Outer Hebrides. Their sole inhabitants are wild sheep which probably arrived there with the first human settlers some 4,000 years ago.
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Sun exposes earth to harmful rays
Washington, June 28: The Sun, a star at the centre of the solar system, is known to provide ideal conditions for life to thrive on earth. But, astronomers have claimed that it also leaves the planet wide open to harmful cosmic rays.