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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.

Joanna is an urban gardener trying to reconnect with nature in Singapore.

With around one million species at risk, how do conservationists decide what species to save?

Tomas Tama has spent 30 years protecting the reptiles in Ethiopia, despite once being bitten.

A mission to launch thousands of satellites is about to begin, but scientists say this could affect astronomy.

The National Trust says it's been a good year for migrant butterflies but not for water voles.

Scientists in the Seychelles have started the world's first large scale coral reef restoration project.

Crowds have gathered to watch the 'once in a lifetime' eclipse in a number of countries.

We look back at some of the major stories of the year in science and the environment.

Hundreds of people affected by severe flooding four years ago have sought mental health support.

More than a million birds are trapped every year in the British Isles by volunteers.

Nasa wants to send humans to Mars one day, but do we have the engines to get us there?

A study attempts to assess the devastation caused by the invasive emerald ash borer in US forests.

British sign language is receiving an astronomical update thanks to a unique collaboration between a space scientist and a group of deaf astronomers.

The discovery was made by scientists at a 4,000-year-old archaeological site in the Hebrides.

The amount of food needed to feed the world's population by the end of the century could increase by almost 80%, a study suggests.

Boeing's Starliner spacecraft has returned early after a timing error meant it failed to dock with the International Space Station.

Justin Rowlatt lands in a dazzling white and blue world to join scientists checking up on Antarctic ice.

These three teenagers are passionate about issues they see around them, and are training to be activists at The Advocacy Academy in London.