The 2010 George Hay Memorial Lecture, as delivered by Oliver Morton at 'Odyssey', the 2010 UK Eastercon.

The Hay Lecture is presented every year by the Science Fiction Foundation in memory of the late George Hay, one of the leading founders of the SFF and a keen exponent of the value of science fiction in education. The 2010 Hay Lecture, the eleventh in the series, was on the subject of geoengineering.

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