Annual emissions of anthropogenic Hg to the atmosphere in different regions of the world during the last decade show an interesting dichotomy: the emissions in the developed countries increased at the rate of about 4.5–5.5% yr−1 up to 1989 and have since remained nearly constant, while in developing countries the emissions continue to rise steadily at the rate of 2.7–4.5% yr−1. On a global basis, however, the total anthropogenic emissions of Hg increased by about 4% yr−1 during the 1980s, peaked in 1989 at about 2290 t and are currently decreasing at the rate of about 1.3% yr−1.

One would that if more than 1,000 scientists belonging to various countries and working for 10 years, pointed out the grave danger posed by increasing carbon emissions to the climate as well as the global economy, world leaders would take notice and initiate restorative action. Instead, they choose to either pass on the buck or worse,

Are the nations of the world serious in their much-touted efforts to control greenhouse gas emissions? Vinayak Rao examines the motives, moods and manifestoes in the run-up to the forthcoming climate change conference in Geneva.

Environmentally sustainable development is the high point of talk in almost all international fora these But a key policy question is the extent to which the existing tax and subsidy regimes

THE World Energy Council (WEC) assures that the energy consumers across the globe will receive more efficient, cleaner and less obtrusive energy services in the future. This is the leading

The US Environmental Protection Agency gets a rap on its knuckles

A BBC serial says strong political will is needed to ensure that energy is used efficient.

All our energy needs could be met if even a fraction of the solar energy received on the earth could be converted into electricity, and the means to exploit this potential is provided by semiconductors.

Everyone these days is aware of the phenomenon of global warming, even if they find it difficult to distinguish between stratospheric ozone depletion and the greenhouse effect. Global Warming: The

New measurement techniques show the level of atmospheric oxygen is decreasing in direct proportion to the burning of fossil fuels. These techniques allow scientists to monitor how much carbon dioxide can be absorbed by the oceans.

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