Researchers are proposing spraying tiny diamonds into the atmosphere in order to fight climate change.
According to Nature researchers at Harvard University are proposing using a spray of diamond and alumina nano-particles in order to scatter the suns rays and reduce climate change.
Previously researchers have proposed doing something similar with sulphates - but then that would mean filling our atmosphere with sulphuric acid.
Debra Weisenstein, an atmospheric modelling expert at Harvard and one of the study's authors told Nature that diamond and alumina sprays would cause less problems.
“You could have significantly less impact on ozone, less heating of the stratosphere and less of an increase in diffuse light at Earth’s surface,” she said.
While alumina would achieve a similar cooling effect to the sulphates diamonds are a world's best friend - they'd be 50% more effective.
That said it isn't a cheap option - so the Harvard team is sticking to focusing alumina for now.
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