Underplayed Gems

Five Ways to Save the World (2006)

Five Ways to Save the World poster
Genre
documentary film
Country
United Kingdom
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The catalogue in 3D

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How it feels

This documentary interviews five scientists about possible large scale engineering projects to fight climate change. It explains their proposals for methods like placing lenses in space or seeding clouds with seawater.

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What happens

Five Ways to Save the World is a British documentary film on environmental issues related to climate change, released in 2006. The film was made by Karen O'Connor, for the big screen and was shot in the English language to reach an international audience. It includes interviews with five environmental scientists and experts including Paul Crutzen, James Roger Angel, John Latham, Ian Jones, and Klaus Lackner. The "five ways" proposed are geoengineering techniques: space lenses in orbit, to diffract sunlight away from the earth cloud seeding with seawater to increase albedo sulfur launched into the stratosphere to increase albedo ocean fertilization with iron or urea (nitrogen fertilizer) artificial trees (see carbon capture and sequestration) Since the first three methods do not remove carbon dioxide from the atmosphere, they would only reduce global warming but not ocean acidification. Since the last two methods would remove carbon dioxide, they could in theory reduce both global warming and ocean acidification. (from Wikipedia, CC BY-SA)

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