In the 2013 film Snowpiercer, directed by Bong Joon Ho, humanity has been reduced to a segmented caste system on a single train that travels through the unhabitable, icy world. In order to combat global warming, scientists in the movie launched a compound called CW7 into the atmosphere. The intention of CW7 was to reflect the sun's heat and reverse global warming, but instead, the CW7 sent the planet into an ice age. Could this plot happen in real life?

On today's episode, Colleen Golja, a PhD student at the Harvard John A Paulson School of Engineering, talks about her work on the controversial ScopEx project and the radiative forcing of aerosols for use in geoengineering. Colleen also talks about her inspiring journey with science and her personal concerns and outlook on solar geoengineering research.

Find more about ScopEx here: https://www.keutschgroup.com/scopex

Colleen's Twitter: @colgol9

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