The latest stories from the Science & Environment section of the BBC News web site.
Updated: 11 min 44 sec ago
Although Arctic sea ice set a record this year for its lowest ever satellite-observed winter extent - that was not the case for its volume, new data reveals.
Scientists are developing smartphone-connected waders that fly-fishing enthusiasts could wear to help them find their catch, but also to collect key data about water properties.
Tonnes of dead fish are being removed from a lake in the centre of Rio de Janeiro in Brazil, which is due to host rowing and canoeing events at the 2016 Olympic Games.
Two Russian polar bears make their debut at Sao Paulo's Aquarium, as the only members of their species in the country.
Will Moore's Law last another 50 years?
The disabled boy struggling to find a role with the people of the sea
Researchers reveal the secret of an octopus's unique movement, revealing how the animals co-ordinate their eight, flexible arms.
Observations from space assist the search for new locations to site geothermal power stations.
Graham Satchell explains why fracking is such a divisive subject.
Any attempts to engineer the climate are likely to result in "different" climate change, rather than its elimination, new results suggest.
BBC News looks at the idea of "stranded assets", part of the debate on climate change and global energy policy.
What does the flurry of new studies say about dark matter?
Scientists are using YouTube videos to study a spectacular cave just outside Riyadh, the capital of Saudi Arabia.
Scientists quantify the emissions from Iceland's spectacular Bardarbunga-Holuhraun eruption.
Scientists have uncovered a vital new insight into the nature of dark matter.
The New Horizons probe, which is bearing down on Pluto, has captured its first colour image of the distant dwarf planet.
A gray whale makes a 22,500 km (14,000 mile) journey across the Pacific Ocean - the longest migration of any mammal, say scientists.
US firm SpaceX narrowly fails to recover its rocket booster in an otherwise successful mission to the space station.
The SpaceX supply ship is on its way to the ISS with a supply of groceries and a specially designed espresso machine.
A deep-sea worm that eats whale bones has existed for 100 million years and may have chewed up chunks of the fossil record, a study suggests.