Fog blankets the south tower of the Golden Gate Bridge in San Francisco on Friday, Oct. 21, 2016. Some scientists want to pursue research into whether marine clouds could be seeded with salt water or other particles, to counter impacts of climate change. Known as “marine cloud brightening,” this technique aims to increase the ability of clouds to reflect solar energy away from the Earth’s surface, reducing temperatures caused by global warming.
Fog blankets the south tower of the Golden Gate Bridge in San Francisco on Friday, Oct. 21, 2016. Some scientists want to pursue research into whether marine clouds could be seeded with salt water or other particles, to counter impacts of climate change. Known as “marine cloud brightening,” this technique aims to increase the ability of clouds to reflect solar energy away from the Earth’s surface, reducing temperatures caused by global warming. Eric Risberg AP
Fog blankets the south tower of the Golden Gate Bridge in San Francisco on Friday, Oct. 21, 2016. Some scientists want to pursue research into whether marine clouds could be seeded with salt water or other particles, to counter impacts of climate change. Known as “marine cloud brightening,” this technique aims to increase the ability of clouds to reflect solar energy away from the Earth’s surface, reducing temperatures caused by global warming. Eric Risberg AP

We can brighten clouds to reflect heat and reduce global warming. But should we?

November 08, 2017 05:36 PM

More Videos

Student walkouts, marches take gun control fight to the streets 1:37

Student walkouts, marches take gun control fight to the streets

Sheriff, NRA spokeswoman, clash at CNN Town Hall 1:21

Sheriff, NRA spokeswoman, clash at CNN Town Hall

Shooting reported near Fort Meade NSA campus 1:13

Shooting reported near Fort Meade NSA campus

Dow first falls 500 points as U.S. stock market opens, then recovers most of losses 1:49

Dow first falls 500 points as U.S. stock market opens, then recovers most of losses

Two students shot inside California middle school 0:58

Two students shot inside California middle school

Hawaii 'ballistic missile threat' false alarm, sent in error 0:44

Hawaii 'ballistic missile threat' false alarm, sent in error

Fire breaks out at Trump Tower in New York 0:26

Fire breaks out at Trump Tower in New York

FCC votes to repeal net neutrality regulations 0:17

FCC votes to repeal net neutrality regulations

FCC net neutrality vote interrupted due to security concern 0:54

FCC net neutrality vote interrupted due to security concern

Protesters rally against FCC net neutrality vote 1:44

Protesters rally against FCC net neutrality vote