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Tipping points: on the edge?

Tipping points - in the Amazon, Antarctic, coral reefs and more - could cause fundamental parts of the Earth system to change dramatically, irreversibly and with devastating effects. Here, we ask the experts about the latest science – and how it makes them feel.

20 August 2026

  • Illustration of permafrost with inset image of Prof Gustaf Hugelius

    The threatening thaw: climate professor on heatwave risks to tipping point of permafrost

    Prof Gustaf Hugelius warns wildfires could accelerate release of methane and carbon as vast regions approach irreversible thresholds

28 June 2025

  • Illustration showing images of Greta Thunberg and Timothy Lenton

    ‘A cascade can be more positive’: social tipping points expert on fixing climate crisis

    The world has been too optimistic about the risk to humanity and planet – but devastation can still be avoided, says Timothy Lenton

27 June 2025

  • Composite showing distorted sea ice and Louise Sime

    ‘It looks more likely with each day we burn fossil fuels’: polar scientist on Antarctic tipping points

    Despite working on polar science for the British Antarctic Survey for 20 years, Louise Sime finds the magnitude of potential sea-level rise hard to comprehend

26 June 2025

  • Composite of a distorted image of Amazon rainforest and Carlos Nobre

    ‘We are perilously close to the point of no return’: climate scientist on Amazon rainforest’s future

    Carlos Nobre, who has fought for decades to save the rainforest, says up to 70% of it could be lost if a tipping point is reached

25 June 2025

  • Tipping-Points-trails-AW-2

    ‘It’s death by a thousand cuts’: marine ecologist on the collapse of coral reefs

    David Obura believes humans have been using nature for free, and tipping points at some reefs have already passed

24 June 2025

  • Composite showing distorted image of a firefighter and Genevieve Guenther

    ‘This is a fight for life’: climate expert on tipping points, doomerism and using wealth as a shield

    Economic assumptions about risks of the climate crisis are no longer relevant, says the communications expert Genevieve Guenther

23 October 2024

  • Iceberg landscape with the midnight sun colours in Greenland

    ‘We don’t know where the tipping point is’: climate expert on potential collapse of Atlantic circulation

    Oceanographer Stefan Rahmstorf explains why Amoc breakdown could be catastrophic for both humans and marine life