By Timothy Gardner
NEW YORK (Reuters) - A rock found mostly in Oman can be harnessed to soak up the main greenhouse gas carbon dioxide at a rate that could help slow global warming, scientists say.
When carbon dioxide comes in contact with the rock, peridotite, the gas is converted into solid minerals such as calcite.
Geologist Peter Kelemen and geochemist Juerg Matter said the naturally occurring process can be supercharged 1 million times to grow underground minerals that can permanently store 2 billion or more of the 30 billion tons of carbon dioxide emitted by human activity every year
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