Some scientists have suggested injecting solid particles such as alumina, calcite, or even diamonds into the atmosphere to temporarily limit climate warming. But new research shows there are still big unknowns.
geoengineering
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An Electrifying Approach to Carbon Capture
A new sodium-ion “battery” promises an environmentally friendly method of sequestering carbon in the ocean, but experts remain cautious.
Posted inEditors' Highlights
Unexpected Consequences of Solar Geoengineering
Solar engineering is not a substitute for mitigation, and concerns about its risks and unintended impacts are supported by the recent discovery of overlooked atmospheric chemical feedback.
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Silicate Weathering Throttles the Global Thermostat
The natural breakdown of some rocks sucks carbon dioxide out of the atmosphere. Knowing how quickly it happens could help scientists engineer solutions to the climate crisis.
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Can These Rocks Help Rein in Climate Change?
Spreading olivine on beaches could accelerate ocean uptake of carbon dioxide and potentially limit climate change. The concept and execution still face some scrutiny from scientists.
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Iodine-Laden Desert Dust Is Eating at Ozone Pollution
In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.
Posted inScience Updates
Improving Models for Solar Climate Intervention Research
Modern climate models were designed to simulate natural systems and changes mainly due to atmospheric carbon dioxide, rather than to predict effects of deliberate climate interventions.
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Researchers Quantify a Seeded Snowpack
In Idaho, three hour-long cloud-seeding events created the snow equivalent of about 282 Olympic-sized swimming pools’ worth of water.
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Majority of YouTube Climate Videos Promote Nonconsensus Views
Search terms related to geoengineering solutions were almost exclusively about chemtrail conspiracy theories.
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Study Will Examine Risks and Benefits of Climate Interventions
A National Academies committee is working to develop a research agenda for geoengineering strategies that reflect sunlight to cool Earth.