What would it cost to wipe out world poverty, guarantee universal health care, stabilise population growth and roll back the ravages of global warming? About $190 billion a year, or the equivalent of a third of U.S. annual military expenditure...

5. Costa Rica - It may be unexpected for some, but Costa Rica comes in fifth. This country has a large total area dedicated to parks. Early on in its history, Costa Rica was already acting to have water and air standards.

Stranded polar bears, melting glaciers, dried-out rivers and flooding on a horrofic scale - these were the iconic images. So who is most able to stop this destruction to our world?

The Devil's Town natural landmark is situatod on the south slopes of Mt. Radan, on the right bank of the Yellow river, in the central Serbia. Devil's Town is a unique example of the action of erosion. It is a complex of stone pyramids. Water erosion has..

We complain that politicians aren't doing enough about the environment, but Colin Beavan, aka No Impact Man, is actually doing something about it. He is asking for a little help as well- he wants to back it up with 3,500 emails of support.

A 150-year-old monkey puzzle tree is facing the chop after health and safety experts said its needles are a danger. The 50ft-tall tree is to be felled after it's needles were likened to syringes.

The last of the chainsaws are due to fall silent as the final licence to log in the Otways expires, ending years of bitter confrontations between loggers and conservationists in the native forest 100 miles south-west of Melbourne.

Our basic food plants have always been vulnerable to attack from new strains of disease or pests and the result is often mass hunger and starvation, as anyone who remembers their school history of the Irish Potato Famine will know

Cutting emissions is no longer considered sufficient. We now face the task of how to remove greenhouse gases out of the air with scientific solutions

"We did not expect to see this extent of ocean acidification until the middle to the end of the century," said study co-author Chris Sabine.