Those of you lamenting a post-COVID return to sitting in stifling meeting rooms and sweating on crowded dancefloors might be pleased to hear that all the heat you’re expending could be used to cut energy costs.

Researchers are working on heat-pump systems allowing thermal energy from bodies at rest – or play – to be stored for later use heating buildings, reducing the need for fossil fuel-driven heating systems as well as making bills cheaper. One day, “smart buildings” may even be able to adjust their temperature based on the number of people inside them.

What’s on the cards for Twitter now it’s being bought by the world’s richest man, Elon Musk? It’s certainly unlikely to be his vision of a free-speech utopia, given growing government restrictions around what can be said online. And the invasion of Ukraine by Russia has led to questions about whether Europe’s far-right politicians will maintain their friendliness with Putin’s regime.

Imogen Malpas

Commissioning Editor, Environment + Energy

Capturing energy from clubbers could help power homes and buildings. Exit Festival/Flickr

Here’s one way to burn less fossil fuel – use human energy to heat buildings instead

Amin Al-Habaibeh, Nottingham Trent University

Extracting and storing human body heat we generate could improve building sustainability while cutting bills.

The Elon ranger. thongyhod

Twitter: not even Elon Musk is wealthy enough to bring absolute free speech to the platform – here’s why

Eric Heinze, Queen Mary University of London

We may be besieged by private companies in online spaces, but only up to a point.

EPA-EFE/Yuri Kochetkov

Ukraine: will Putin’s war alienate his many admirers on Europe’s far right?

Toby Greene, Bar-Ilan University

Research shows that Europe’s far right has deep ideological and practical ties to Putin’s Russia.

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