According to scientists, evaporated water helps in cooling earth as a whole, not just the local area of evaporation, a study said.

A new study by scientists at the Indian Institute of Science, the Carnegie Institution for Science at Stanford University and Lawrence Berkeley National Laboratory have demonstrated that evaporation of water from trees and irrigated crop areas could cool the planet which could have major implications on decision making for land use.

This work aims to identify the geographic distribution of photovoltaic (PV) energy potential considering the effect of temperature on PV system performance. A simple framework is developed that uses the JIS C 8907 Japanese industrial standard to evaluate the effects of irradiation and temperature on PV potential. The global distributions of PV potential and yearly performance ratio are obtained by this framework. Generally, the performance ratio decreases with latitude because of temperature. However, regions with high altitude have higher performance ratios due to low temperature.

Modernization should not lead to destruction. It must improve the quality of life, said Chief Minister Sheila Dikshit at a function on International Day for the preservation of Ozone Layer.

London: There will be an unexpected sight high in the skies over the British county of Norfolk nextmonth: A huge balloon attached to the ground by a giant hosepipe.

Land use and land cover changes affect the partitioning of latent and sensible heat, which impacts the broader climate system. Increased latent heat flux to the atmosphere has a local cooling influence known as ‘evaporative cooling’, but this energy will be released back to the atmosphere wherever the water condenses. However, the extent to which local evaporative cooling provides a global cooling influence has not been well characterized. Here, we perform a

Europe has been at the forefront in the use of solar energy. Experiences of Spain in particular should offer vluable lessons on introducing policy changes for India.

Whether salt crystals, spores or sulphates: aerosols have an influence on the yield and performance of solar thermal power plants that should not be underestimated.

Afforestation, the conversion of croplands or marginal lands into forests, results in the sequestration of carbon. As a result, afforestation is considered one of the key climate-change mitigation strategies available to governments by the United Nations. However, forests are also less reflective than croplands, and the absorption of incoming solar radiation is greater over afforested areas. Afforestation can therefore result in net climate warming, particularly at high latitudes.

Sunspot cycles -- those 11-year patterns when dark dots appear on the solar surface -- may be delayed or even go into "hibernation" for a while, a U.S.

A U.N. plan to upgrade "space weather" forecasts can help the world cope with solar storms that might wreak up to $2 trillion in damage if the sun repeated a giant flare of 1859, experts said.

The sun is entering a more active phase due to peak in 2013 on a roughly 11-year sunspot cycle, the World Meteorological Organization (WMO) said.

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