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The surprising way we can cool the planet - Elise Cutts
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This documentary-style TED-Ed video explains enhanced rock weathering — a promising method for removing carbon dioxide from the atmosphere by crushing volcanic basalt and spreading it on farmland. B2 learners will acquire vocabulary in environmental science and geology, including 'silicates,' 'bicarbonate,' 'sequester,' 'basalt,' and 'carbon impact.' Great for discussing climate solutions and geological processes in English.
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Subtitles (39 segments)
DownloadThe Canary Islands are home to Mount Teide, one of the world’s largest active volcanoes.
Capable of spewing tens of millions of cubic meters of lava in a single eruption, Teide’s destructive power is nothing to scoff at.
But there may be a way to use the basalt rock inside Teide to save humanity.
That’s right— blowing up this volcano could offset Earth’s emissions for the foreseeable future.
Obviously, destroying an ancient volcano is not a good idea.
The ecological fallout would be catastrophic and unpredictable.
But even if we harvested some of that basalt, could we really use it to stop climate change?
This theoretical scheme is a dramatic way to enhance one of Earth’s least dramatic natural processes: rock weathering.
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Key Vocabulary (21)
A series of steps or actions taken in order to achieve a particular result. It explains how something is done or how it happens over time.
Describes something that exists in or is caused by nature, rather than being made or changed by humans. It can also refer to someone's innate abilities or a relaxed, normal way of behaving.
The powerful effect that something has on a situation or person. It can also refer to the physical force of one object hitting another.
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