Learn · TED

Talk16 min

A critical look at geoengineering against climate change

David Keith · TED

Watch At TED

About

Environmental scientist David Keith proposes a cheap, effective, shocking means to address climate change: What if we injected a huge cloud of ash into the atmosphere to deflect sunlight and heat?

The talk

  1. A critical look at geoengineering against climate change 16 min · TED's player

Credits and licence

Institution
TED
Department
TEDSalon 2007 Hot Science
Speaker
David Keith
Year
2007
Level
For everyone
Language
English
Subjects
Engineering, Earth and environment, Business and management
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed