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The Guardian - UK
The Guardian - UK
Environment
Fiona Harvey Environment editor

Carbon dioxide removal: the tech that is polarising climate science

IPCC David King Friederike Otto Cambridge University
Fans that suck carbon dioxide out of the air installed on the roof of an incinerator near Zurich, Switzerland
Fans that suck carbon dioxide out of the air installed on the roof of an incinerator near Zurich, Switzerland. Photograph: Orjan Ellingvag/Alamy

For some scientists, they are the inevitable next stage of staving off the existential threat of climate chaos. For others, they should not even be talked about.

Carbon dioxide removal (CDR) technologies, which provide a means of sucking carbon out of the atmosphere, are one of the hottest areas of climate research, but also the most controversial.

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