Military to Use Weather as Weapon?

"From 1945 into the 1970s, much effort went into studies of weather modification. American entrepreneurs tried cloud-seeding to enhance local rainfall, Russian scientists offered fabulous schemes of planetary engineering, and military agencies secretly explored "climatological warfare." The hopes and fears promoted basic research on climate change by raising large sums of government money and a few provocative ideas. In the mid 1970s the visionary projects were mostly abandoned. Research turned instead to controversial "geoengineering" schemes for interventions that might restrain global warming if it started to become unbearable."