Is Snowpiercer’s climate engineering realistic?

SyFy’s Science Behind the Fiction takes a look at the climate engineering featured in Bong Joon-ho’s Snowpiercer and its tv adaptation.

Both Bong Joon-ho’s 2013 cli-fi film, Snowpiercer, and the ongoing TNT television adaptation of the same name offer audiences a bleak view of humanity’s future. In a desperate attempt to combat rising global temperatures, 79 countries deploy the chemical CW7 into the upper atmosphere. The project works, only too well. Temperatures decline and keep on plummeting, plunging the planet into an ice age. Most of the life on Earth dies, save for a small remnant of humanity living aboard a globe-spanning train.

In Snowpiercer, climate engineering leads to catastrophic results. In the real world, our best bet at slowing or stopping climate change is to drastically reduce emissions. But climate engineering does offer some alternative (though less-understood) solutions.

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