The idea is intriguing, especially as climate change exacerbates the threat of extreme weather. But numerous hurdles stand in the way of implementation.

The idea is intriguing, especially as climate change exacerbates the threat of extreme weather. But numerous hurdles stand in the way of implementation.

Researchers say simulations show carefully timed cloud-seeding operations days before 2012 Hurricane Sandy could have shifted its track by about 300 miles to miss New York City