Why tech giants are putting 57 million into crushed volcanic rock

Get the Full StoryTwo years ago, a startup called Lithos didn t yet exist. Now it s selling its carbon removal service to companies like Alphabet.

Last fall, on a farm in Northern Wisconsin, a farmer spread 1,421 metric tons of crushed volcanic rock on his fields before planting soybeans and corn. The rock dust, from a startup called Lithos, serves two purposes: For farmers, it increases yields. It also helps capture carbon.Read Full Story

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