According to Thomas Perls, the director of the New England Centenarian study at Harvard University, dying at 100 is qualitively different from dying at 80. Dr Perls's research suggests that for the

The use and abuse of the environment is a complex matter, especially in the vast but fragile Amazon rainforest. Logging, mining and large scale agriculture have been important sources of jobs and

Is peace at hand in Canada's bitter dispute with the United States over the sharing of Pacific Salmon? A report by two special envoys, which both governments have accepted, has raised hopes. But big

More cars, more houses. Official predictions suggest that Britain faces a future of rising congestion and pollution as more countryside disappears under concrete and tarmac : a

ZymeTx, a biotechnology company has developed, and recently obtained official approval for, a kit that can tell whether your sore throat and running nose really are the result of a virus or whether

According to a recent report by New South Wales's Environment Protection Authority, 9% of the Australian continent was forested when the first Europeans stepped ashore in 1788; only 5% remains

In a quixotic effort to save the leopard and other Arabian species from extinction, the region's first ever Breeding Centre for Endangered Wildlife is set to open in Sharjah in the United Arab

How people remember things, why some things are more memorable than others, and how memory might be improved, are slowly being cleared up : a

politics, water and poverty : In the past, drought in Brazil meant starvation for people and animals alike. This year no one should die, officials say, thanks to a relief operation which, after a

Floods, notwithstanding, the Chinese have available, per person, only about a fifth of the world average supply of water. In the vast northern and north-western regions of Inner Mongolia, Shanxi,