BBC

The ambitious project aims to tackle a collection of waste known as the Great Garbage Patch.

Investigations are under way to determine why large numbers of whales are dying off Scotland and Ireland.

Japan is trying to convince the world the time has come to make commercial whaling legal again.

Huge installations of wind turbines and solar panels would boost rainfall and vegetation in desert areas.

The British-built Aeolus satellite begins firing its laser down on Earth to map the planet's winds.

Scientists show how searching social media messages can reveal useful data on animal behaviour.

One of the UK's leading female scientists donates her £2.3m science prize to help more women, ethnic minority and refugee students to become physics researchers.

An activist hopes to pick up a million cigarette butts from his local beaches to draw attention to the plastic they contain.

Russian officials now say a hole in a spacecraft docked at the space station was caused by a drill.

A year after breaking away from Antarctica, the world's biggest iceberg is finally on the move.

Some species of plant have evolved to take up metals like nickel and iron, without being poisoned.

The room has been transformed in honour of pioneering palaeontologist Mary Anning.

The nation is united behind drought-hit farmers, but some query the merits of "special treatment".

Marine biologist Melissa Marquez shares a dive on the Great Barrier Reef, and tips for swimming with sharks.

National Museum officials in Rio de Janeiro say almost 90% of the collection was destroyed by fire.

Over the next two years, the UN hopes to secure a treaty to protect two-thirds of the world's oceans.

Many Japanese people who recycle their household plastic would be shocked to know where it ends up.

It was also the hottest summer for England since records began in 1910, the Met Office says.

The National Museum of Brazil, home to some 20m items spanning centuries, is devastated.

The sunfish, normally found in the tropics, was recorded off Skye and Ardnamurchan last week.