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Articles on Negative emissions

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In Reykjavik, Iceland, a Climeworks factory located at the back of a power plant draws in ambient air and releases it as largely purified CO2 through ventilators. Halldor Kolbeins/AFP

Forget net-zero: to halt global heating, aim for net-negative

New research suggests it will be next to impossible to limit global warming to safe levels without relying on technologies to directly remove carbon from the air.
Weathering of rocks like these basalt formations in Idaho triggers chemical processes that remove carbon dioxide from the air. Matthew Dillon/Flickr

An effective climate change solution may lie in rocks beneath our feet

To avoid global warming on a catastrophic scale, nations need to reduce emissions and find ways to pull carbon from the air. One promising solution: spreading rock dust on farm fields.
Without rapid and dramatic changes, the world will face a higher risk of extreme weather and other effects of climate change. AP Photo/Mike Groll

Why we can’t reverse climate change with ‘negative emissions’ technologies

The UN’s panel on climate change said that technologies to remove CO2 will be necessary to limit global temperature rise to only 1.5 degrees Celsius. But these techniques are largely unproven.

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