Identifying 5 expensive and downright impractical geoengineering ideas designed to curb global warming:

[5:30] 2 direct carbon capture projects (one of which plans to drill more oil)

[8:30] A gigantic umbrella in space?

[10:00] Adding iron to the ocean in hopes of spurring algae blooms

[13:00] Sending sulfur dioxide into the atmosphere in weather balloons, oh my

Resources mentioned:

HEADLINES: Geoengineering