Scientists dim sunlight, suck up carbon dioxide to cool the planet
The UN says Paris climate goals won't be met simply by reducing emissions, and pushes for other ways
Oslo
SCIENTISTS are sucking carbon dioxide from the air with giant fans and preparing to release chemicals from a balloon to dim the sun's rays as part of a climate engineering push to cool the planet. Backers say the risky, often expensive projects are urgently needed to find ways of meeting the goals of the Paris climate deal to curb global warming that researchers blame for causing more heatwaves, downpours and rising sea levels.
The United Nations says the targets are way off track and will not be met simply by reducing emissions, for example from factories or cars - particularly after US President Donald Trump's decision to pull out of the 2015 pact. It is pushing for other ways to keep temperatures down.
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