WASHINGTON (AP) — A federal science report says it is time to study and maybe even test the idea of cooling the Earth by injecting sulfur pollution high in the air to reflect the sun’s heat.
The idea was once considered fringe — to purposely re-engineering the planet’s climate as a last ditch effort to battle global warming with an artificial cloud. No longer.
In a first-of-its-kind U.S. report, the National Academy of Sciences said Tuesday that the concept should not be acted on because it is too risky, but it needs to be studied and maybe tested outside in small projects.
Because warming has worsened and some countries might act unilaterally, scientists said research is needed to calculate the consequences.
The panel did favor technology to suck carbon dioxide from the air.
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