The Kyoto protocol, agreed in December 1997, was the first step to curtail emissions of the industrialised world. It is now being used to set up a trading system to buy and sell carbon emissions. Anil Agarwal and Sunita Narain provide a review of Post-Kyoto movers and shakers, swaps and deals, and antagonists and protagonists

Suresh Prabhu is by no means breaking new ground. He is merely mouthing the same promise made time and again, but never fulfilled, by his predecessors

In a monumental decision, the American government approves the world’s first large-scale testing of an AIDS vaccine

Levels of carcinogenic pollutants are alarmingly high in Calcutta’s air

Thirty million HIV-infected people in the world live in developing nations. With no cures in sight, all they can do is wait for death. And lack of proper health care facilities has only made matters worse