Note — Dec 02, 2018

Solar Geoengineering Could Be ‘Remarkably Inexpensive’

This feels very much like playing with things we don’t quite understand but then again, on most days, even this kind of crazy scheme seems more likely than politicians around the world suddenly acting in a sufficient and concerted manner. And don’t forget this Julian Oliver thread from last week on adjacent ideas.

“We show that a hypothetical deployment programme, while both highly uncertain and ambitious, would be technically possible,” said Gernot Wagner from Harvard University. “It would also be remarkably inexpensive, at an average of around $2bn to $2.5bn per year.” […]

The programme would begin with 4,000 flights a year and end with 60,000 flights a year by almost 100 aircraft.