BBC

Here's a look at how some of the UK's biggest tea brands are trying to tackle the plastic problem.

Polling suggests the environment is one of three key issues for voters - but by the end of the campaign will politicians be answering their questions?

A Swiss region allows trophy hunters to shoot ibex, but the elusive animal remains rare in the Alps.

Despite widespread reliance on the system, there is no universal plan to deal with GPS disruption.

Scientists say they have seen "evolution in action" in the Highlands because of warmer temperatures.

Around 11,000 scientists have endorsed research that says the world is facing a climate emergency.

The UK-led challenge to the land speed record ups its pace in trials in the Kalahari Desert.

Pods allow visitors to experience the air quality in Delhi, London, Beijing, São Paulo and Norway.

Hydrogen cars are green, quick to refuel and have range, so why are battery cars way ahead of them?

Notification begins the one-year process of withdrawing from the landmark climate agreement.

Data from spacecraft launched in the 1970s help determine the shape of the magnetic bubble around the Sun.

A wildlife centre in Leicestershire says it is "overwhelmed" with the numbers of underweight hoglets.

The actress and activist on why she's being arrested each week but not wanting to go to prison.

The party says a huge programme to fund household energy-saving would reduce bills and create jobs.

An oven for baking chocolate chip cookies is making its way to the International Space Station.

António Guterres says Asian countries must use greener energy sources to tackle the climate crisis.

The new mine in Cumbria could create 500 jobs but protesters argue it will contribute to global warming.

Hollywood star says he's optimistic about the future because of climate activist's campaigning.

The Kenyan capital city is facing water supply issues - how serious is the problem?

Parliament is sending 30,000 invitations to people to take part in a citizen's assembly on climate change.