"The CO 2 just passes in and gets absorbed by the core" of the capsule, said study researcher John Vericella, an engineer at Lawrence Livermore National Laboratory. The capsules absorb carbon dioxide, meaning they could be used to "scrub" the greenhouse gas from fossil fuel power plant emissions. Now, researchers have taken this white powder and encapsulated it into tiny balls that look something like caviar. Sodium carbonate, known colloquially as soda ash or washing soda, is a common water softener that's easily produced from limestone or table salt. They were invented in 1920, according to the Edison Tech Center.Ī humble (and inexpensive) sodium compound could tackle a big task: Halting global warming. Sodium lamps use a mix of neon gas and solid sodium to achieve their golden hue.
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