Hard choices

... about which regions to conserve have just become easier, thanks to an experiment in Uganda

Victim of changes

High carbon dioxide levels may bring about some unpleasant surprises

Real flower-power

Warmer still

Bad air

Dying wings

Bear minimum

Why should bears cross the road? Simple -- to survive

Back from plant heaven

South Africa tries to bring cycads, plants that coexisted with the dinosaurs, back to life

Toyota's trees

The Japanese carmaker is developing unique trees to absorb car emissions

Walled paper

Global warming, how much?

The efficacy of computer models in assessing climate change remains contentious

Emission predicting

...in the next century may not be very simple, say climate scientists

Dam woes in Japan

Salmon in trouble

Greenland crisis

Study shows glaciers in Greenland are thinning

Rains for Mexico

Mexico City uses technology to make its own wind and rain. But the sceptics are not impressed

Shells for safer seas

Japan's scientists harbour the oyster's impressive cleaning powers to keep beaches clean

Culling dilemma

Worst case scenarios

Climate change will not be gradual, but a swift and sudden process

Hunting for good

Oh! zone

Trojan fish?

An owl's day

Chemical protectors

Flowers' chemical compounds shield the plants from herbivorous insects

Hostile to ozone

Four chemicals said to be 'ecofriendly' are destroying the ozone layer