STUDY WEIGHS THE RISKS OF CLIMATE GEOENGINEERING

To slow down the accelerating pace of climate change, scientists are working on radical geoengineering technologies like space mirrors, ocean iron fertilization, and cirrus cloud thinning to tweak the earth’s climate system. But a new study published in the journal Risk Analysis finds that none of these human interventions are risk free. Instead, “they merely shift risk or redistribute it,” says lead author Benjamin Sovacool, professor of energy policy at the University of Sussex Business School and a professor at Aarhus University and Boston University. “These risk tradeoffs must be evaluated if some of the more radical geoengineering technologies are to be deployed.”