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 (WMO). The bulletin with the updated status of the ozone layer by WMO-Global Atmosphere Watch bulletin returned …
Desert dust perturbs climate by directly and indirectly interacting with incoming solar and outgoing long wave radiation, thereby changing precipitation and temperature, in addition to modifying ocean and land biogeochemistry. While we know that desert dust is sensitive to perturbations in climate and human land use, previous studies have been …
HOW cloudy is it outside? Will it rain? The answers may depend on the level of atmospheric pollution in one’s region. Cloud-forming microscopic particles, called aerosols, absorb and reflect solar radiation. These particles have the ability to modify cloud formation and encourage or suppress precipitation. They can be released from …
Aerosols could be injected into the upper atmosphere to engineer the climate by scattering incident sunlight so as to produce a cooling tendency that may mitigate the risks posed by the accumulation of greenhouse gases. Analysis of climate engineering has focused on sulfate aerosols. Here I examine the possibility that …
India is blessed with abundant solar energy. Solar water heater system is a technically proven successful application for use of this energy. However the market for the solar water heater is not yet developed fully. This informative hand book on solar water heater is prepared, for the Ministry of New …
CALL it a conspiracy between cloud and pollution. Stretches of clouds, impregnated with fine pollutants, or aerosols, reflect a large amount of sunlight over India back into space. This could be a major factor in the reduced radiation on the Indian soil, said researchers from Indian Institute of Tropical Meteorology …
Cloud simulation is one of the most challenging tasks in regional to global-scale modelling. In many cases, the physical mechanisms responsible for observed cloud dynamics are unknown, making it difficult to realistically simulate their structure and behaviour. These authors show that open cellular clouds
Production of rice will slow down as temperatures increase in rice-growing areas with continued climate change warns this new study published in latest edition of PNAS. Is based an analysis of 6 years of data from the major rice-growing countries in Asia. See Also Report: A framework for adapting Indian …
Divya Gandhi Bangalore: The spectre of global warming has generated some rather novel emergency fix-it proposals to stave off solar radiation from reaching the Earth. These include placing mirrors in space to reflect sunlight, injecting sulphate aerosols in the stratosphere and other such techniques of geo-engineering. A research article by …
Absorbing aerosols affect global-mean precipitation primarily in two ways. They give rise to stronger shortwave atmospheric heating, which acts to suppress precipitation. Depending on the top-of-the-atmosphere radiative flux change, they can also warm up the surface with a tendency to increase precipitation. Here, we present a theoretical framework that takes …
India is on a mission. To drastically ramp up its solar power production to 22,000 MW by 2022. From steel makers and automobile manufacturers to diamond merchants and realtors everyone sees the Jawaharlal Nehru National Solar Mission as their chance to strike gold. But it is not so easy. The …
Clouds with aerosols conspire to block and reflect away sunlight over the Indian subcontinent, a new research claims. This results in what is called 'solar dimming' lessening the amount of sunlight that reaches Indian soil. "Dimming affects climate change by reducing surface temperature and weakening the hydrological cycle, which in …
The Indian Space Research Organisation (ISRO), as part of the Indo-French Space Collaboration, is planning to launch a satellite for climate research in a year's time. The
The sensitivity of Amazon rainforests to dry?season droughts is still poorly understood, with reports of enhanced tree mortality and forest fires on one hand, and excessive forest greening on the other. Here, we report that the previous results of large?scale greening of the Amazon, obtained from an earlier version of …
A drought that happens once in a hundred years had little negative or positive effect on the Amazon rainforest according to this study led by Arindam Samanta from Boston University. Its results are different from 2007 IPCC report which stated that 40 percent of the Amazon rainforest was threatened by …
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 It is no longer …
