CW-7 was a cooling agent that was used to cool down the temperatures of the planet in response to Climate change.
History
Background
CW-7 proved to be too effective and instead froze the planet, starting a new ice age so extreme that no life could survive it. Before CW-7 was released, Joseph Wilford predicted that CW-7 would freeze the planet, which led him to convert Snowpiercer from Luxury Liner to an Ark.
Season 2
After finding it to be snowing out, Melanie Cavill realized that CW-7 may have begun to break up in the upper atmosphere and fall to Earth, meaning that the planet might be warming and may potentially become habitable again in the survivors' lifetime rather than in a thousand years. Melanie set out to prove her theory using the abandoned Breslauer Weather Station and weather balloons released by Snowpiercer across the planet to collect data and build a climate model in the hopes of finding a location that could potentially be recolonized.
After being recovered by Andre Layton and Alex, Melanie's data shows several areas that are warming, in most of Central America and South Mexico, parts of the top and bottom of South America, Spain and southwest Europe, much of the upper parts of Africa as well as the Middle East and Greece, parts of Asia, South Africa and Madagascar, about two-thirds of South Australia and two small spots in the Dominican Republic and South India. However, North America still appears to be completely frozen over with no warm areas.
Season 3
Bennett determines that the locations the Pirate train checked out, won’t be habitable for a century, give or take, as even though it’s warming, the trend isn’t steep enough to be habitable yet. However the Gulf of Aden, has yet to be investigated.
Description
According to the Headwoods on the theory that the Earth is warming (based on the snow sample taken by Melanie Cavill), the CW-7 may have been buried in a larger compound, Ammonium Sulfate, and if that's what it was, in the quantities they saw, the theory holds.
Appearances
- Season One
- Season Two
Trivia
- Contrary to the movie, in the TV Series, the CW-7 was released by missiles rather than planes.
- In the graphic novels, CW-7 was a weapon of mass destruction that was activated during a war, but who activated it first is currently unknown.
- CW-7 was originally engineered to last a thousand years, in order to protect the Earth from Global Warming for that long.
- In reality, creating a thing like CW-7 would be Solar geoengineering.
Gallery
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CW-7 released by planes in the film
