Washing water

Microbes can rid polluted water of toxic metals and colours

Pollution strikes

A study uncovers an unlikely possible perpetrator of global warming - lightning

Emissions curtailed

Promising bacteria

Microorganisms prove effective in recycling old tyres stockpiled in landfill areas

Vicious circle

Global warming reduces ability of oceans to absorb carbon dioxide, leading to more warming

Sieve with a change

Save the killers

Even the nasty little bugs are worth conserving

Tortoise trouble

An erupting volcano forces conservationists to airlift endangered tortoises to safety

Poisoned land

Though Spain celebrates for saving Donana national park, danger still brews, say experts

Edged to extinction

Despite all our efforts, we may really not be able to save those rainforest fragments

Salt of the Earth

Shrimp farms vs mangroves

The unpleasant green

There is no answer to the water hyacinth menace in Lake Victoria

Learning to fly

Ultralight aircraft are being used to lead endangered cranes to their winter home

Past continuous

Remains of asbestos mining industry are still polluting the rivers and air in South Africa

The burning question

Back to the forests

Innovative schemes of sponsored reforestation may help combat global warming

Save conifers

It is wetter in the south

Australian scientists say ocean warming has increased rainfall over the Southern Ocean

Pollution at high levels

Vanishing grasslands

Plankton warming

Killer cornered

Persistent weed killers meet their match

Crab trouble

Horseshoe crabs, survivors from the Paleozoic Era, now face the threat of extinction

Seas of despair

Heavy metals are polluting the North Sea. And there is nothing we can do