Climate change: Australian television audience whistles skeptical senator

In an incident that made Australia speak, Senator Jim Molan was booed during a television discussion about the forest fire crisis.

The liberal politician spoke in the ABC program of questions and answers about climate change and asked whether it was caused by human action.

Molan later said he had "no science" for his opinion and defended government policies against climate change.

Government critics say that man-made climate change has been a major contributor to forest fires and that measures must be taken to cope with rising global temperatures.

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Newcastle University films gray seals that clap underwater

Researchers believe they are the first to film gray seals clapping their fins under water.

Dr. Ben Burville of Newcastle University has tried for 17 years to catch a seal that resembles a seal that they produced during the breeding season.

He took these pictures on the Farne Islands near Northumberland.

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Cycling in the air, the deadliest in Europe

Some European cities suffer from the worst air quality in the world.

Winter smog has become a major problem in the Western Balkans.

Serbia is the country with the highest rate of pollution-related deaths in Europe, according to the Global Alliance for Health and Pollution.

Jasna Cizler is a bicycle activist in the capital, Belgrade, who believes that two-wheeled traffic is the key to clean air.

Produced by Guy Delauney

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Could you run the most distant camp?

To better understand how sea levels can rise worldwide, scientists are camping in Antarctica.

Everything is a cold struggle to keep your feet warm and use the toilet.

It's one of the most remote places on earth, and so BBC environmental correspondent Justin Rowlatt went to find out what it looks like.

Video reporter: Jemma Cox

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In the hidden "Power Tunnels" of London

A hidden tunnel network under London supplies the network.

With the Londoners encouraged to buy more electric cars and London that needs more energy, "electric tunnels" were created under the city streets.

In the first phase, which was completed in 2018, 32 km of tunnels were built with high-voltage cables. The next step should begin construction this year.

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Amazon rainforest: A 90-year-old man tries to stop the destruction

Newsnight rarely had access to a unique gathering of a generation of indigenous groups trying to save the Amazon.

Environmental activists and indigenous groups claim that the policies of Brazilian populist leader Jair Bolsonaro have contributed significantly to the destruction of the rainforest.

Chef Raoni Metuktire is now visiting the UK for international support for his plan. He sat down with Newsnight's international editor, Gabriel Gatehouse.

You can watch the full episode of Newsnight here

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Could you run the most remote campsite in the world?

To better understand how sea levels can rise worldwide, scientists are camping in Antarctica.

Everything is a cold struggle to keep your feet warm and use the toilet.

It's one of the most remote places on earth, and so BBC environmental correspondent Justin Rowlatt went to find out what it looks like.

Video journalist: Jemma Cox

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