prove to be economically efficient. One example is Carbon Engineering, a Canadian-based clean energy company focussing on the commercialization of Direct Air Capture (DAC) technology that captures carbon dioxide directly from the atmosphere.

One key recommendation of the Rand Corporation study is that an ambitious climate restoration goal may seek to achieve preindustrial concentration by 2075, or by the end of the century. It concludes that "The best we can do is pursue climate restoration