Reclaiming water

What's eating the grasslands?

No one spared

Pesticides linked to dog cancer

Whole lot of trouble

Global warming may aggravate ozone depletion in Arctic

Terminal retreat

Four glaciers of the Baspa basin may dry up due to global warming

An ocean of evidence

First clear evidence of human-induced global warming

Drought is spreading fast

Dry areas increase by 250 pe cent in 30 years

Hot air

Biogas emissions less hazardous than believed

Timber risk

Common preservative can cause arsenic leaching

Ozone halo

Around the Tibetan plateau

In a lather

Soaps, tubewells are causing arsenic contamination

Enervating effect

Once a common pesticide, DDT may be responsible for falling male fertility worldwide

For silver more

Live response

Dying a green death

Heat to beat

Fume out

With a little help

After years of decline the vicuna makes a comeback in Peru

Tortoise trade

Fierce storms

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