Because scientists who've looked to glaciers to study the history of climate on Earth have found that the Northern and Southern hemispheres have not been moving in sync. (scientificamerican.com)
«Finally we have the last piece of the puzzle explaining how particles from space affect climate on Earth. (sciencedaily.com)
Kaempffert considered but dismissed nuclear energy as a solution.Waldemar Kaempffert, «Warmer Climate on the Earth May Be Due To More Carbon Dioxide in the Air,» New York Times, Oct. 28, 1956. (history.aip.org)