Scientists testing laser beam which could stimulate rain and lightning. The new method could help increasingly drought-stricken areas around the world.
Rains that are almost biblical, heat waves that don’t end, tornadoes that strike in savage swarms—there’s been a change in the weather lately. What’s going on?
The biggest dust storm in living memory rolls into Phoenix on July 5, 2011, reducing visibility to zero. Desert thunderstorms kicked up the mile-high wall of dust and sand. Image © Daniel Bryant/National Geographic