Research on Global 'Sun Block' Needed Now, Experts Argue

Internationally coordinated research and field-testing on ‘geoengineering’ the planet’s atmosphere to limit risk of climate change should begin soon along with building international governance of the technology, say scientists from the University of Calgary and the United States.

Collaborative and government-supported studies on solar-radiation management, a form of geo-engineering, would reduce the risk of nations’ unilateral experiments and help identify technologies with the least risk, says U of C scientist David Keith, in an article published in the Jan. 27 online edition of Nature. Co-authors of the opinion piece are Edward Parson at the University of Michigan and Granger Morgan at Carnegie Mellon University.

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