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Geoengineering

June 2026

  • An African hand with beaded bracelets rests on a white painted surface with ridges

    Better sleep, improved health, happier people: how ‘cool roofs’ could help millions avoid deadly heat

    A project to measure how reflective paint reduces indoor temperatures is delivering tangible benefits across Africa

January 2026

  • Pollution and steam rise from the stacks of a power station

    It's time to talk about geoengineering
    double quotation markSome want to ban vital geoengineering research. This would be a catastrophic mistake

    Craig Segall and Baroness Bryony Worthington
  • an image of the Earth in space

    It's time to talk about geoengineering
    double quotation markIf geoengineering is ever deployed in a climate emergency, transparency is key

    Ines Camilloni
  • Chile is moving to create the Cape Froward National ParkThe Sarmiento de Gamboa Glacier on Santa Ines Island under a cloudy sky, during a boat trip in the Strait of Magellan, near the Brunswick Peninsula where Chile plans to create Cape Froward National Park to protect roughly 150,000 hectares of forests, peatlands, glaciers and coastline, in collaboration with Rewilding Chile, in Punta Arenas, Chile, December 2, 2025. REUTERS/Pablo Sanhueza

    It's time to talk about geoengineering
    double quotation markWe study glaciers. ‘Artificial glaciers’ and other tech may halt their total collapse

    Brent Minchew and Colin Meyer
  • Sun rays shine through the treetops in a forest

    It's time to talk about geoengineering
    double quotation markWe can safely experiment with reflecting sunlight away from Earth. Here’s how

    Dakota Gruener and Daniele Visioni

December 2025

  • Global warming and environmental disaster concept

    We must not stop research on solar geoengineering

  • The seventh United Nations Environment Assembly opens in Nairobi, Kenya, on 8 December 2025.

    The Guardian view on solar geoengineering: Africa has a point about this risky technology

November 2025

  • Dry riverbed in Sahel area

    Solar geoengineering in wrong hands could wreak climate havoc, scientists warn

    Blocking the sun may reduce global heating – but ‘rogue actor’ could cause drought or more hurricanes, report finds

September 2025

  • A glacier breaks apart at the South Pole

    Underwater curtains and reflective beads are ‘unrealistic and dangerous polar geoengineering ideas’

    Climate research group says such ideas are diverting attention from cutting fossil fuel use

June 2025

  • A huge shelf of ice, part of which can be seen melting into greeny-blue water.

    Seascape: the state of our oceans
    Mirrors in space and underwater curtains: can technology buy us enough time to save the Arctic ice caps?

    A conference in Cambridge this week will explore a raft of geoengineering ideas to cool the region down – and attempt to address the fears of those who argue the risks outweigh the benefits
  • A weather balloon soars in the sky

    Weatherwatch
    Researchers call for urgent exploration of methods to cool Earth

    Ideas include injecting sulphates into the atmosphere to reflect sunlight but this could do more harm than good
  • A hand holds a dropper dropping liquid into a lab beaker with seawater and fish representing the ocean.

    Our acidifying oceans
    A drop in the ocean: does experimental technology hold the key to saving the world’s seas?

    Investment is pouring into companies promising to geoengineer a rapid change in the pH of our waters – but critics are concerned at the speed at which unproven methods are being adopted

May 2025

  • A wide shot of clouds releasing rain over trees on a horizon line

    Science Weekly
    Is it time to try geoengineering? – podcast

    Podcast14:20
  • Rain falling from clouds over a dark landscape, with lighter skies above

    Real-world geoengineering experiments revealed by UK agency

April 2025

  • A place landing at Stansted airport as the sun sets

    UK scientists to launch outdoor geoengineering experiments

    Blocking sunlight could temporarily slow the climate crisis but the technologies remain highly controversial

March 2025

  • Red sky and setting sun

    Climate research into cloud barriers or Arctic refreezing is worth funding

  • partial solar eclipse with birds

    double quotation markThe UK’s gamble on solar geoengineering is like using aspirin for cancer

    Raymond Pierrehumbert and Michael Mann

December 2024

  • The sun rises behind Fiddlers Ferry coal fired power station near Liverpool

    EU should ban space mirrors and other solar geoengineering, scientists say

    European Commission scientific advisers say technology to offset global heating could wreak havoc on weather

October 2024

  • Arwa Mahdawi

    double quotation markWild conspiracies about the weather are spreading online. The media can help

    Arwa Mahdawi
    If people knew more about geoengineering, they might not believe Marjorie Taylor Greene’s latest unhinged theory

July 2024

  • Large expanse of ice

    Terrawatch
    Scientists call for greater study of glacier geoengineering options

    Report says serious research needed into risks and benefits as melting could cause devastating sea level rise
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