“The height of the Chacoan culture lasted from A.D. 1055 to 1083, corresponding to the period of most intense building activity. This period also produced the most startling series of events in the heavens that have taken place within the… — J. McKim Malville Copy Share Image
“Marsh and Svensmark postulated that a high level of sunspot activity reduces the level of cosmic rays and therefore reduces the level of low-level cloudiness, resulting in an increase in global temperatures.” — Steve Goreham Copy Share Image
