Siberian tiger in severe decline
The last remaining population of Siberian tigers has declined significantly, according to a recent survey.

Device spells doom for superbugs
Researchers have demonstrated a device that can kill off superbugs such as MRSA in just seconds - and could help with body odour.

Wind turbine noise rules 'dated'
The government needs to update its guidance on the impact of noise from wind turbines, a campaign group says.

US pledges carbon emissions cuts
President Obama will vow to cut US carbon emissions by 17% by 2020, when he attends the climate summit in Copenhagen.

'Icebergs heading to New Zealand'
A warning is issued to ships in the southern Pacific after more than 100 icebergs are spotted drifting towards New Zealand.

UK plutonium strategy 'ludicrous'
The UK's strategy for reducing its stockpile of separated plutonium at Sellafield nuclear plant is in "disarray", experts warn.

Astronomers invent 'galaxy game'
Astronomers have devised a web-based game that could help work out the basis of galactic collisions.

A boost for 'spintronics' - but is it the future of computing?
The field of "spintronics" - a future means of computing - is shown to work at room temperature for the first time.

Bloodhound effect
Inspiring the next generation of engineers

Green Big Brother
Sahara reality TV show to highlight climate change

Climate of fear?
The longer-term impact of hacked climate e-mails

Waters rising
Two cities, in Africa and Europe, braced for higher seas

Going nuclear
Will new reactors be built in time to keep the lights on?

Are children's futures going up in smoke?
What price will children have to pay for the carbon excesses of past generations?

Climate: A question of justice
Why a human rights activist is making the jump to mainstream environmentalism.

Final design for 1,000mph car
The UK team aiming to smash its own land speed record by driving a car beyond 1,000mph settles on a final design for the vehicle.

Gene offers bowel cancer 'shield'
A gene known to shield the body from harmful chemicals may also protect against bowel cancer, a study suggests.

Cup of mint tea 'can kill pain'
A cup of Brazilian mint tea has pain relieving qualities to match those of commercially available analgesics, a study suggests.

Beams collide in Big Bang machine
Engineers operating the Large Hadron Collider (LHC) have smashed together proton beams in the machine for the first time.

Appeal over missing Darwin notes
English Heritage launch an appeal to trace Charles Darwin's missing Galapagos notebook.

Climate policies 'improve health'
Cutting emissions to mitigate climate change will also make people healthier, according to research.

Climate 'drives African conflict'
Climate is a major driver of conflict across Africa, researchers say, with future warming likely to increase civil wars by 50% in 20 years.

UK tree plan to aid emissions cut
Ministers back calls to plant millions of trees across the country to help combat climate change.

This year 'in top five warmest'
This year will be in the top five warmest years globally since records began, according to the UK Met Office.

US 'will announce climate target'
The US will give a target for reducing greenhouse gas emissions ahead of next month's UN climate summit, officials say.