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A report highlights changes since the river was declared "biologically dead" in 1957.

Five things you need to know about COP26 - the United Nations climate change conference - on Wednesday.

Boris Johnson is urging nations to secure action to limit global warming in the summit's last days.

Cape Town, on South Africa's coast, was the first global city to come close to running out of water.

Rising ocean temperatures are having 'worrying' impacts on the deep ocean's ability to lock away our carbon emissions.

Nuclear power is being promoted as a source of 'clean' energy, but is it safe?

New analysis of pledges at COP26 suggest no government is doing enough to limit temperature rise.

Five things you need to know about COP26 - the United Nations climate change conference - on Tuesday.

We asked climate experts from around the world what they want to see agreed at COP26 this week.

A photographer is using her art to inspire, hoping to keep the iconic animals at home on the range.

Firms often claim they are eco-friendly but how can you check they are as green as they make out?

Poorer countries say they are not able to get compensation for the damage caused by climate change.

As the COP26 summit enters its second week, government ministers gather in Glasgow for more talks.

Five things you need to know about COP26 - the United Nations climate change conference - on Monday.

There are more participants than from any single country, a study shared with the BBC suggests.

By mimicking the way lobsters’ eyes work, scientists have designed new X-ray space telescopes that can survey much larger areas.

Plans for a generation of new smaller nuclear reactors will become more concrete this week.

The organisation says peat bogs should be left alone as they trap carbon.

There's been progress - but huge hurdles remain to be cleared in the final week of talks in Glasgow.

Officials must "pull together" as the climate summit in Glasgow enters its final week, Boris Johnson says.