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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Albedo enhancement by stratospheric sulfur injections: A contribution to resolve a policy dilemma?
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
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Atmospheric brown clouds: Impacts on South Asian climate and hydrological cycle
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
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Atmospheric brown clouds: Impacts on South Asian climate and hydrological cycle
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
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Unusual activity of the Sun during recent decades compared to the previous 11,000 years
<p>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
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Opting for renewables
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
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India: aim, hope high
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,
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Technology: Biomass gasification
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.
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Targets or diktats?
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
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The Indian Ocean experiment and the Asian Brown Cloud
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 research project that includes all of Asia.
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Silver lining?
Aerosols mitigate the effects of global warming in India during winters