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 …
The global atmospheric circulation transports energy from the equatorial regions to higher latitudes through a poleward flow of high-energy and -entropy parcels and an equatorward flow of air with lower energy and entropy content. Because of its turbulent nature, this circulation can only be described in some averaged sense. Here, …
Dust aerosols can suppress rainfall by increasing the number of cloud condensation nuclei in warm clouds and affecting the surface radiation budget and boundary layer instability. The extent to which atmospheric dust may affect precipitation yields and the hydrologic cycle in semiarid regions remains poorly understood. We investigate the relationship …
Women due to give birth in winter should use a sun lamp during the final three months of pregnancy to protect their child from osteoporosis in later life, doctors have suggested. They made their recommendation as research found that children born to mothers whose final three months of pregnancy included …
Abstract Black carbon in soot is the dominant absorber of visible solar radiation in the atmosphere. Anthropogenic sources of black carbon, although distributed globally, are most concentrated in the tropics where solar irradiance is highest. Black carbon is often transported over long distances, mixing with other aerosols along the way. …
New York: Astronomers at the University of Sussex claim to have calculated that the Sun will vapourise Earth in about 7.6 billion years unless our planet's orbit is altered. According to them, the Sun's slow expansion will cause the temperature on the surface of the Earth to rise
It would seem that India is quick to jump on a boat and then even quicker to sink it. This is what the country's planners did with concentrating solar power (csp) technologies
Data from the satellite-based Special Sensor Microwave Imager (SSM/I) show that the total atmospheric moisture content over oceans has increased by 0.41 kg/m2 per decade since 1988. Results from current climate models indicate that water vapor increases of this magnitude cannot be explained by climate noise alone. In a formal …
"Climate Change 2007 - The Physical Science Basis" is the most comprehensive and up-to-date scientific assessment of past, present and future climate change. The report provides: the most complete and quantitative assessment of how human activities are affecting the radiative energy balance in the atmosphere; a more extensive assessment of …
Previous studies have found that atmospheric brown clouds partially offset the warming effects of greenhouse gases. This finding suggests a tradeoff between the impacts of reducing emissions of aerosols and greenhouse gases. Results from a statistical model of historical rice harvests in India, coupled with regional climate scenarios from a …
Fossil fuel burning releases about 25 Pg of CO2 per year into the atmosphere, which leads to global warming (Prentice et al., 2001). However, it also emits 55 Tg S as SO2 per year (Stern, 2005), about half of which is converted to sub-micrometer size sulfate particles, the remainder being …
South Asian emissions of fossil fuel SO2 and black carbon increased 6-fold since 1930, resulting in large atmospheric concentrations of black carbon and other aerosols. This period also witnessed strong negative trends of surface solar radiation, surface evaporation, and summer monsoon rainfall. These changes over India were accompanied by an …
South Asian emissions of fossil fuel SO2 and black carbon increased 6-fold since 1930, resulting in large atmospheric concentrations of black carbon and other aerosols. This period also witnessed strong negative trends of surface solar radiation, surface evaporation, and summer monsoon rainfall. These changes over India were accompanied by an …
Direct observations of sunspot numbers are available for the past four centuries, but longer time series are required, for example, for the identification of a possible solar influence on climate and for testing models of the solar dynamo. Here we report a reconstruction of the sunspot number covering the past …
There is a prominently held view that dissemination of renewable energy technology is marred by high costs. It’s true that a few technologies like wind power have become cheaper, but others are still expensive. Solar photovoltaics (PV) and wind energy now cost one-tenth of what they did in the early …
According to IEA's factsheet, Renewables in global energy supply, the wind energy sector has grown at more than 52 per cent per annum since 1971, and solar power by 32 per cent per annum. Renewables in 2000 accounted for 13.8 per cent of the world's total primary energy supply (electricity, …
function india_table() { var popurl="html/20040531_india.htm" winpops=window.open(popurl,"","width=450,height=380,scrollbars=yes") } Starting before industrialised Germany and the UK, India has perhaps promoted renewables the longest though a dedicated establishment. The country's Ministry of Non-conventional Energy Sources (MNES) is one of its kind in the world. India has the fifth-largest installed wind capacity in the …
With a cost of Rs 4 crore per megawatt, more cost effective than a coal-fired thermal power plant, biomass gasification is a lucrative option for providing electricity to Indian villages. Significantly, India is a world leader in gasification technology, which is improving every day. Biomass gasification means converting solid biomass …
At Renewables 2004, "an international action plan will be on the agenda, including actions and commitments by governments, international organisations and stakeholders," says the conference announcement document. "The conference outcome will include arrangements for a follow-up and a mechanism to share information on progress in implementing the international action plan." …
The Indian Ocean Experiment (INDOEX) was sponsored by research agencies within Europe, India and USA, and was mainly concerned with the haze over south Asia and the adjacent Indian Ocean. It excluded other equally or even more polluted areas in Asia. The Asian Brown Cloud is a follow on international …
