environmental concerns

According to a recent study by a team of German scientists, to remove a billion tons of CO2 through “enhanced weathering,” approximately three billion tons of basalt would have to be mined, crushed, and transported. “While this is a very large amount” of rock to mine, grind, and ship, the authors noted, it is…

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6.25 hectares. 2019 started relatively quietly, but monthly data showed steadily escalating amounts of deforestation as the April–November dry season got underway. By August, when the black clouds were drifting towards São Paulo, the Deter data indicated that deforestation was running at three times the rate of the previous year. Inpe’s ‘deforestat

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Policy was weakening at exactly the time that scientific concerns about the impact of deforestation on global warming were multiplying. During the 1990s, and especially from the beginning of the twenty-first century, policymakers had come to worry about deforestation in the Amazon mainly because of the way that it directly released large amounts of

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Just as there are lots of ways to add CO2 to the air, there are lots of ways—potentially—to remove it. A technique known as “enhanced weathering” is a sort of upside-down version of the project I toured at the Hellisheiði Power Station. Instead of injecting CO2 deep into rock, the idea is to bring the rock up to the surface to meet the CO2. Basalt

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