BBC

The adventurer Sir David Hempleman-Adams calls on politicians to "grasp the nettle" on climate change.

A leading US Republican fears for the future of her grandchildren with Donald Trump as president.

From a majestic natural spectacle to a high-octane technological thrill ride, here's our guide to the big science events of 2017.

The work of a number of the UK's leading scientists has been recognised in the New Year Honours.

Despite its alarming pollution levels, Delhi has seen an explosion in the number of private vehicles, while public transport is in decline, environmentalists warn.

China announces a ban on all ivory trade and processing activities by the end of 2017.

Here's a selection of the most inspiring findings in archaeology revealed this year.

Migrating birds are arriving at their breeding grounds earlier as global temperatures rise, an Edinburgh University study finds.

A rare giraffe has been born at Chester Zoo.

Warm winters and bad summers have hit the insect population, but seen other wildlife flourish, says the National Trust

Urgent action is needed to stop the cheetah - the world's fastest land animal - becoming extinct, scientists say.

A selection of the best science and environment reads this year.

Astronomer Vera Rubin, whose pioneering work led to the theory of dark matter, dies at 88.

A new study estimates there are just 7,100 now left in the wild as the wide-ranging mammal faces growing conflict with humans.

UK scientists have decoded the genome of the ash in the fight against a devastating plant disease.

A selection of the best science and environment reads this year.

Could wave energy ever power the world?

A UK designer launches the "30-year Christmas sweatshirt" to question the ethics of the "fast fashion" industry.

Temperatures at the North Pole could be up to 20 degrees higher than average this Christmas Eve.

British-born astronaut Piers Sellers has died of pancreatic cancer, aged 61, Nasa says.