In an emergency, we’re told to “break the glass” and grab the fire extinguisher. If we’re in the midst of a climate emergency, is there a firehose we could spray into the sky to cool down our atmosphere? It may sound like science fiction, but some climatologists endorse research into such techniques known as geo-engineering. But could tinkering with the stratosphere in this way lead to a new ice age – or worse? What group of people could be trusted with such God-like powers? Join us for a discussion of the scientific, moral, economic and technological dimensions of geo-engineering.

This program was recorded live at the Commonwealth Club of California in San Francisco.