09/12/2012 05:24 pm ET

Geoengineering Faces Dilemma: Experiment Or Not?

In May, a team of British scientists abruptly canceled an experiment they had been planning for nearly two years. The Stratospheric Particle Experiment for Climate Engineering, or SPICE, was intended to test ways of injecting tiny particles of sulfur dioxide into the upper atmosphere, with the eventual goal of filtering out sunlight to cool the Earth in the face of global warming. The main reason given for the cancellation was a potential patent dispute over some of the technology involved.

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