BBC

The BBC’s Roger Harrabin takes a look at the tech behind hydrogen energy and its green potential.

Almost every day for 40 years, expert diver Jim Abernethy has been swimming with sharks in the Bahamas.

If emissions continue rising, Europe can expect 50C heatwaves every three years, the Met Office says.

Rich countries will get most of the attention, but developing countries are on climate change's front line.

Conservationists say the move will protect migration routes for many endangered species.

World leaders' use of private jets to attend the climate summit has been called into question.

Three days into the COP26 global climate summit, and the mood is positive.

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

Dubbed the Sphinx, the snow on a remote Scottish mountain has in the past survived for decades at a time.

The North Sea still contains large quantities of oil and gas but how much longer can it continue to be extracted?

Companies will outline how they aim to meet the UK's 2050 net-zero target, under government rules.

Countries that will sign the pledge cover more than 70% of the world's economy.

The Biden administration plans to restore tough rules curbing one of the most potent greenhouse gases.

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

More than 100 world leaders will vow to protect forests when they sign COP26's first major deal on Tuesday.

Who are the people who will determine the success or failure of the climate summit?

The BBC’s Science Editor David Shukman takes a look inside the UN’s climate conference in Glasgow.

It is the "time for action", the monarch says in a video address at the COP26 climate summit.

As world leaders gather for COP26 in Glasgow, Prime Minister Boris Johnson says action is needed.

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