...Ten years ago, no one, Lackner included, really believed it could be possible to efficiently capture and remove carbon dioxide directly from the atmosphere. Today, the idea is still widely considered a far-fetched option for addressing climate change.
But as emissions climb and as global climate targets look increasingly difficult and expensive to meet, it is, to some, one of the only options that could someday turn back the hands of time.
What is needed is a machine that can actually reduce the concentration of greenhouse gases in the atmosphere....
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