Researchers had been testing a sprayer that could one day be used to push a salty mist skyward, cooling the Earth. Officials stopped the work, citing health questions.
Dr. Doherty and her colleagues stressed that research into cloud brightening must not be seen as an alternative to cutting emissions, but rather a strategy that might one day become necessary to buy the world some time until those emissions are reduced.
I’m not delighted that this needs to be experimented with (and I don’t think anyone is), but as long as it’s used as intended, it could turn out to be a net positive.
I’m not delighted that this needs to be experimented with (and I don’t think anyone is), but as long as it’s used as intended, it could turn out to be a net positive.