Last week Boris Johnson took a one hour flight from London to the G7 summit in Cornwall, emitting well over 100 kg of carbon dioxide in the process. He’s a busy man, of course, so perhaps he couldn’t fit a train (about 14kg of CO2) into his schedule, though it is rather ironic that one of the main topics of discussion was climate change. It’s true that a single flight won’t radically alter the amount of carbon in the atmosphere – but what signal did it send to the rest of us?

Steve Westlake is investigating exactly this as part of his PhD. He’s finding that, although world leaders and celebrities may have an interest in pushing for technological solutions rather than personal action, they are seen as much more credible if they walk the talk on climate change – with implications for the potential success of their climate policies.

There have now been more than 100 million orders of the COVID vaccine developed by Sinopharm, a Chinese-state owned company. It might not be as effective as some other vaccines, says one researcher, but it’s still a key part of the global response. Plus we hear how the UK’s lockdown delay will affect music venues.

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