This fall, Florida faced back-to-back hurricanes, and with those storms came a flood of wild conspiracy theories on social media. One of the craziest claims? That the U.S. government was manipulating the weather to target specific areas based on politics. While this is completely false, there are indeed people working quietly on technology that can influence the weather—though we’re nowhere near controlling hurricanes.

The Quest to Cool the Planet

A growing number of tech founders and...