The big question: Would climate engineering like sending reflective particles into the stratosphere or brightening clouds help reduce the national security risks of climate change or make them worse?
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Articles on Geoengineering
Displaying 1 - 20 of 64 articles
Geoengineering proposals to cool the ocean would indeed reduce ice loss from West Antarctica’s glaciers, but not enough to stop sea-level rise or allow the ice sheet to regrow.
A UN meeting this week considered a motion on a suite of technologies known as ‘solar radiation modification’, but no consensus could be reached on the controversial topic.
Australian is experimenting with marine cloud brightening to cool and shade the Great Barrier Reef. Here’s how it works.
A new report explores options for managing the period after global warming exceeds 1.5°C. This is called ‘climate overshoot’, because we’re pushing past the safe zone into dangerous climate change.
Some geoengineering techniques are better understood than others. The US is investing in capturing carbon dioxide from the air, but ideas to block the Sun’s rays are raising big concerns.
Can we engineer oceans to store more carbon dioxide in the fight against climate change? A new bill before parliament seeks to regulate such activity, but holds back on research incentives.
An elaborate scheme to shade Earth with millions of tonnes of Moon dust floating in space is unlikely to get off the ground.
Injecting reflective particles into the atmosphere won’t immediately cool the entire planet. A new study shows how parts of the US, China and Europe might still see temperatures rising a decade later.
Here are two possible forms of regional geoengineering.
A climate scientist looks at what works and some popular ideas that aren’t as cheap or effective as people hope.
New modelling shows how tectonic plate movements, carbon-rich deep-sea sediment, and mountain weathering have regulated Earth’s climate.
Solar geoengineering could temporarily address the worst impacts of global warming.
The risks of using aerosols to reflect sunlight and cool the planet include creating extreme weather and worsening catastrophes.
An engineered climate recovery needs to be taken seriously — in addition to cutting emissions.
Solar geoengineering could theoretically cool the Earth to slow global warming, and it has been controversial. Still, countries should research its risks and benefits.
Is it time to take drastic steps to modify Earth’s climate to avoid catastrophic warming? A panel of experts says the idea deserves study.
The plan has plenty on reducing emissions, but less on removing already-emitted carbon from the atmosphere.
Countries are not on track to meet Paris Agreement goals. A climate researcher argues that a range of technologies that take CO2 out of the air are needed.
The world economy collapsed when homeowners couldn’t repay subprime mortgages. We’re now making a similar bet on ‘repaying’ carbon emissions.
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Top contributors
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Professor of Engineering Dynamics and Vibration, University of Cambridge
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Research Associate, University of Cambridge
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Director, Centre for Climate Repair, University of Cambridge
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PhD Scholar in Climate Governance, Australian National University
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Senior Lecturer, Adelaide Law School, University of Adelaide
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Professor of Environmental Law, University of Tasmania
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Presidential Fellow in Environment, University of Manchester
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Director Permanent Carbon Locking Future Science Platform (CarbonLock), CSIRO Environment, CSIRO
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James Martin Fellow, Oxford Martin School, Environmental Change Institute and Institute for Science Innovation and Society, University of Oxford
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Professor and Scott Presidential Chair in Environmental Science and Engineering, Colorado State University
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Adjunct professor, UNSW Sydney
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Associate Professor, The University of Western Australia
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Chair Professor, Climate Change Research Centre, UNSW Sydney
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Adjunct Research Scientist, Northwest Research Associates
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CSIRO Fellow, CSIRO
