From David Keith: "Aerosols could be injected into the upper atmosphere to engineer the climate"
Full Paper by David Keith June 30th, 2010
An Easy Way To Describe Weather Modification Terms
"An international team of scientists under the direction of Brian Whalen of the National Research Council of Canada successfully blew a temporary hole in the aurora borealis and then sent an instrument carrying rocket through the hole"
February 6, 1980
-Astrophysics Data System Harvard University