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The world of renewables this week

Nature Communications magazine has a report on machines which suck CO2 directly from the air, which suggests that it would need 25% of the world’s electricity to do it and a land mass 5 times the size of India. A computer model Direct Air Capture has been carried out and it highlights the “clear risks” of assuming that DAC will be available at scale, with global temperature goals being breached by up to 0.8C if the technology then fails to deliver. It suggests policymakers do not take see it as a “panacea” instead of cutting emissions, because the risks are far too high. It turns out that some £680 million of UK foreign aid was spent on fossil fuel projects…

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