The latest stories from the Science & Environment section of the BBC News web site.
Updated: 24 min 6 sec ago
BBC Breakfast talks to Chris Barns 'Kangaroo Dundee' who rescues and raises orphaned kangaroo joeys.
What's it really like on Kiribati - poster island for climate change?
Barn owl nestlings recognise their siblings' calls, according to researchers.
A team of amateur radio enthusiasts launch a tiny satellite into space to try to inspire schoolchildren to become the scientists and engineers of the future.
Red squirrels at a National Trust reserve in Formby, Merseyside, have shown signs of resistance to the pox that has blighted the species, say scientists.
Researchers studying the pox virus that is blighting red squirrels demonstrate how they take blood samples from the wild animals.
For a few days each year, a vast area off the Australian east coast becomes an underwater city of coral spawning.
Indonesian officials raise the alert status for the Mount Sinabung volcano in North Sumatra to the highest level, as it rumbles on.
Why is everyone so angry about electricity?
Click's Melissa Hogenboom finds out more about a prototype that allows you to print your own food.
Marathon talks in Warsaw end with a fragile agreement on the way forward to a new global climate deal in Paris in 2015.
The metal we may be able to stop mining - and just recycle
What's in store when Comet Ison swings by Sun?
A huge US energy supplier, Duke Energy, is fined $1m (£620,000) over the deaths of golden eagles at two wind farms in the state of Wyoming.
Negotiators meeting in Poland have agreed a way forward on curbing deforestation.
A UN maritime tribunal orders Russia to free a Greenpeace vessel and 30 people detained after an oil drilling protest in the Arctic.
Fred Kavli, founder and chairman of The Kavli Foundation, dies aged 86.
Negotiators were preparing for a long final session at the National Stadium in Warsaw as UN talks on climate change crawled to a conclusion.
China successfully flies a stealth drone for the first time on Thursday, state media say, citing eyewitness reports.
The European Space Agency's Swarm mission to map the Earth's global magnetic field in unprecedented detail launches from Russia.