BBC

The hydrogen-powered drone which could revolutionise the travel industry.

The year 2019 saw several high temperature records in the UK - concluding a record-breaking decade.

The sheep of North Ronaldsay could teach other livestock how to belch in a way less harmful to the climate.

How the Japanese firm Astroscale is set to start cleaning up the Earth's orbiting space debris.

A trial where hydrogen is added to natural gas raises hopes of a low-carbon heating revolution.

A former software analyst and rising opera star has penned a song for the Red Planet.

Plans for a new mission come months after the Chandrayaan-2 failed to land on the Moon.

The move is designed to protect marine life around the Pacific island state.

A group of viruses, of which measles is one, are adept at jumping to species barrier.

The Duke and Duchess of Cambridge unveil a global prize to tackle climate issues in the next decade.

The measure would ban all "non-essential" private car journeys in the city centre by 2023.

The Wildlife Trust is looking to recruit a deputy warden and a visitor officer to work on the island.

Mark Carney said the financial sector had begun to curb investment in fossil fuels. but slowly.

The teenage activist and veteran naturalist talk to each other for the first time (via Skype).

The world will face irreversible heating unless financial firms shift priorities, Mark Carney tells the BBC.

The activist's father says he thought her skipping school to fight climate change was a "bad idea".

With some blockbuster space missions underway, 2019 saw some amazing images beamed back to Earth.

Hydrogen-powered drones have several advantages to lithium ion-powered ones, says Dr Enass Abo-Hamed.

A selection of the best science and environment features published this year.

A law could be strengthened to punish people who throw litter out of vehicle windows.