All geoengineering articles
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NewsUS National Academies proposes $125 million ocean carbon sequestration effort
Proposed programme would study the potential of various ocean-based carbon dioxide removal strategies to address climate change
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ResearchSeeding oceans with volcanic ash could be new tool to tackle climate change
Tephra could encourage phytoplankton blooms that could potentially sequester huge amounts of carbon dioxide
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NewsNegative emissions technology needed to remove CO2 and head off climate change
Technologies that pull carbon dioxide from the air and sequester it are economically viable and part of package of measures to mitigate climate change, US National Academies says
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ResearchAtmospheric limestone dust injection could halt global warming
Geoengineering using limestone aerosols would also help to stop ozone layer depletion
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FeatureEngineering the climate
Could technologies that modify the Earth’s climate control systems help us limit global temperature rises? Nina Notman investigates