Given the fact that annual CO2 emissions from fossil fuel combustion surpassed 37 billion tons in 2019, the net-zero goal by 2050 will call for an energy transition unprecedented in both pace and scale. A closer look at…

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To deal with the rot problem, all sorts of preservation techniques have been proposed. One entails cutting down mature trees and burying them in trenches; in the absence of oxygen, the trees’ decay—and the release of CO2—would be forestalled. Another scheme involves collecting crop residues, like cornstalks, and dumping them deep into the ocean; in

A third part of the work involves carbon capture and geological injection underground, into rock formations where it can be stored safely for millennia.