This roundup of The Conversation’s climate coverage was first published in our award-winning weekly climate action newsletter, Imagine.

2025 was a brutal year for the climate: record temperatures, ever more extreme weather and so on. We rarely got a break from the bad news.

This week, rather than saying what’s going wrong, Imagine is looking at what’s starting to go right – and why it matters.

This isn’t blind faith. It’s what some academics call “grounded optimism”, based on data, momentum and the surprising resilience of people and ecosystems.

We rightly spend a lot of time worrying about climate tipping points – the terrifying thresholds beyond which ecosystems collapse. Earlier this week we looked at the prospects of a sudden collapse in coral reefs, for instance.

But we rarely hear about “positive tipping points”. These are the moments when a sustainable technology or action becomes so affordable or popular that it kickstarts “irreversible, self-propelling change”.

The UK may have just passed one (tipping points, as the coral reefs author notes, are best noticed in hindsight). That’s according to Kai Greenlees and Steven R. Smith of the University of Exeter, who say the electric vehicle market is an example of a positive tipping point in action.

Despite misinformation campaigns, sales have surged in the UK, driven by a simple reality: they are getting cheaper and better.

“The more........

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