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It could cool the planet by mimicking volcanoes, but is it worth ...

World

It could cool the planet by mimicking volcanoes, but is it worth the risk?

Solar geoengineering research runs into barriers as indigenous opposition sparks a 2022 strategy rethink

Alister Doyle

In 1965, US president Lyndon Johnson’s science advisers urged research into reflecting sunlight to keep the Earth cool amid projections of an alarming build-up of greenhouse gases in the atmosphere as a result of burning fossil fuels.

Almost six decades later, “solar geoengineering” research has made scant headway.

It attracts less than 1% of climate science budgets, amid fears that tampering with the global thermostat could produce unexpected consequences — and distract from an overriding need for deep cuts in greenhouse gas emissions...

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