BBC News - Science & Environment
Updated: 1 hour 14 min ago
How do scientists assess the scale of dirty air across the UK and just how dangerous is the air that we breathe?
Cats are as good as dogs at certain memory skills and may be just as smart, say scientists.
President's support for Keystone XL and Dakota Access proves he is a climate threat, critics say.
A "very high" air pollution warning has been issued for London for the first time under a new alert system.
Scientists have created bacteria that thrive using an expanded "genetic alphabet".
The Google-sponsored race to put a privately funded spacecraft on the Moon has just five teams left in the competition.
The excavation of a rare, intact Viking boat burial in western Scotland has been set out in detail for the first time.
South Yorkshire Fire Brigade were called in to assist in giving a polar bear a dental check-up.
A Rodrigues fruit bat has been born by C-section at San Diego Zoo.
Ministers accused of not tackling concerns over home insurance, building rules and planning.
Motoring journalist Quentin Willson calls for cheaper and simpler prices to encourage the use of electric cars.
Texan Christy Kroboth used to have a quiet job in a dentist's surgery. Now she spends her time jumping on animals many times her size - and taping their jaws tightly shut.
The opal dubbed the Fire of Australia is back on public display after 70 years in a safe deposit box.
Concern at fabricated stories on websites prompts a psychological study to help people spot fake news.
A project aims to plant three million trees - one for every man, woman and child - in Greater Manchester over the next 25 years.
As the new president settles in, much of the world reaffirms its commitment to the Paris agreement.
Ex-US Vice President Al Gore, who has made a new climate change film, says he thinks campaigners will "win" the debate.
The crack in Antarctica's Larsen C Ice Shelf that looks set to spawn a giant iceberg has spread a further 10km.
Scientists say ants can plot a route home even when travelling backwards.
Archaeological research at a site in Galloway suggests it may have been at the heart of a "lost kingdom" from the Dark Ages.