Russia threatened to close a major gas pipeline to Europe this week, in retaliation for fuel import bans imposed by EU countries. The European Commission announced a plan to totally wean the EU off Russian gas before 2030, but in the short term, national leaders within the bloc are worried that escalating hostility could squeeze supplies and leave millions of households paying extortionate sums for heating and power.

But those households could help ease the energy crisis, the International Energy Agency has suggested, by turning their thermostats down by 1°C. It might sound silly, but Aurore Julien, a senior lecturer in environmental design at the University of East London, says the effect could be profound. In previous research, she demonstrated that collective action to lower the heating, turn off lights, draw curtains and deactivate radiators in unused rooms in London could rapidly cut household energy use by 23%.

The two-year anniversary of the beginning of the pandemic is approaching. Here are the COVID habits you probably picked up – plus the ones which are likely to stick. And if you’re considering donating to aid people caught in the Ukraine conflict, ensure you read this first.

Jack Marley

Environment + Energy Editor

EPA/Andy Rain

Turning down your thermostat really can ease a gas supply crisis – here’s how

Aurore Julien, University of East London

People can act collectively to lower their energy use in an emergency.

Andy Rain/EPA-EFE

Two years into the pandemic, which of our newly formed habits are here to stay?

Simon Nicholas Williams, Swansea University

COVID has disrupted how we work, socialise and shop, but there are some signs we’re returning to doing things like we used to.

A volunteer sorting donations to be sent to Ukraine. Stéphanie Lecocq / EPA-EFE

Will booking an Airbnb help Ukraine? Why people make counterproductive decisions about charity

David Comerford, University of Stirling

Many well-intentioned people are supporting counterproductive efforts to help Ukraine. Behavioural science can explain why.

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