Written in the ice

Welcome to Sheba. Here, 50 scientists will endure extreme weather conditions to better understand the Arctic climate and global warming

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

Benevolent bacteria

Aerosol advantage

Scientists claim that sulphate aerosols reduce global warming

Pollinators in peril

Frozen for reuse

Disaster in the pipeline

Fire, brimstone and cooling

Large volcanic eruptions contribute significantly to global cooling

Sorting waste

Sands of time

Large portions of cultivable land may be lost to the desert in northwest China by end-1997

Tracking elles

Danger zone

Cancer in children has increased following radioactive leakage from a plant in France

Crying wolf?

A plan to reintroduce wolves in Scotland's forests runs into rough weather

A cleansing effect

A new bacterium can convert a toxic groundwater pollutant into a harmless hydrocarbon

Packaging that melts

Raising a stink

Air quality in poultry farms in Europe suffers badly due to ammonia from chicken droppings

New angle on recycling

Wastefrom animal farms can now be recycled into fish food

No monkey business, this

Monkeys are more knowledgeable than humans about the medicinal value ofplants

Pure warmth