Scientists zap clouds with electricity to make them rain

Experiment finds electrical charge can alter size of water droplets and cause them to explode'

Gloomy foggy days are frequent in November, but there's not a lot we can do about them. Or is there? A new experiment has shown that zapping clouds with electrical charge can alter droplet sizes in fog or, potentially, help a constipated cloud to rain.

Last year Giles Harrison, from the University of Reading, and colleagues from the University of Bath, spent many early mornings chasing fogs in the Somerset Levels, flying uncrewed aircraft into the gloop and releasing charge. Their findings, published in Geophysical Research Letters, showed that when either positive or negative charge was emitted, the fog formed more water droplets.