Chesley Bonestell, “The Exploration of Mars” (1953), oil on board, 143/8 x 28 inches, gift of William Estler, Smithsonian National Air and Space Museum. Reproduced courtesy of Bonestell LLC.

Upping the Odds for Geoengineering?

January 21, 2015

In its latest report on climate change, the United Nations makes its first mention of a possible future need to remove heat-trapping carbon dioxide from the atmosphere and inject it underground, according to the Toronto Star. But experts have cautioned in Issues that long before the United States takes such a step toward even modest “geoengineering,” it should establish an official oversight mechanism for evaluating research and making public decisions.