“Even if every country fulfills the pledges made in the Paris climate accord—and the United States has said that it doesn’t intend to—carbon dioxide could soon reach levels that, it’s widely agreed, will lead to catastrophe, assuming it hasn’t already done so.” So it’s worth rooting for companies making machines that essentially suck carbon dioxide out of the air. According to one founder: “If we’re successful at building a business around carbon removal, these are trillion-dollar markets.” (Hopefully, they get paid in bitcoin. That much cash would result in a lot of off-gassing.) From Elizabeth Kolbert in The New Yorker: Can Carbon-Dioxide Removal Save the World?

+ In the meantime, you can do your part by wearing a climate beneficial wool hat that comes from carbon-positive sheep.