What is geoengineering and can it save the planet?

What is geoengineering, and how could it help or harm the planet? Researchers at University of California, Berkeley, have a study that provides some answers to how helpful geoengineering could actually be. Jonathan Proctor explains the pros and cons of solar geoengineering when it comes to crops.

Provided by University of California, Berkeley

Runtime: 2:36

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