In the Spring issue of The Wilson Quarterly, historian James R. Fleming urges caution about adopting a quick technological fix to global warming. He shows that efforts to manipulate the climate and weather have a long history of exaggerated claims and failure. Scientists, such as Pentagon futurist Lowell Wood and Nobel laureate Paul Crutzen, are often dangerously oblivious to the political and military implications of their work, which includes proposals to pump millions of tons of reflective nanoparticles into the atmosphere or launch giant mirrors into orbit to reflect the sun’s rays back into space. Inevitably, argues Fleming, national governments will try to weaponize weather-altering technologies. And even if climate engineering succeeds, who will control the global thermostat?