Low flush toilets often waste more water than they save due to poor engineering and confusing buttons.

The broadcaster gains a million followers within five hours of joining the platform.

It's official, bird song did sound different during lockdown, according to a scientific study.

The broadcaster gained more than 200,000 followers within an hour of posting his first video.

One in five species of maple are threatened in their natural habitats, an extinction study says.

Scientists calculate how many tiny fibres our polyester and nylon garments lose in the wash.

The government is urged to do more to get people to wear reusable, washable face coverings.

More than 32,000 tonnes of the chemicals were approved for export by the UK in 2018, says Greenpeace.

Conservation group WWF says global wildlife populations have shrunk by two-thirds since 1970.

Christian Kroll is the boss of Ecosia, which donates 80% of its profits to tree-planting projects.