In an eleventh-hour attempt to slow down global warming, some scientists have been proposing — or even testing, at a small scale — whether releasing aerosolized particles into the atmosphere to dim the Sun could lower global temperatures,…

In an eleventh-hour attempt to slow down global warming, some scientists have been proposing — or even testing, at a small scale — whether releasing aerosolized particles into the atmosphere to dim the Sun could lower global temperatures,…