Variability of the sun’s irradiance, Global Warming Water Experts Find Earth’s Warming, Rainfall Linked to Sun By Dennis T. Avery, Hudson Institute Tuesday, July 24, 2007 A team of water experts says the pattern of droughts and floods in South Africa shows our global warming was triggered by the variability of the sun’s irradiance rather than by human-emitted CO2. They say variations in South African rainfall patterns are keyed to periodic reversals of the sun’s magnetic field—and to the constantly changing distance between the sun and the earth as both move through space. In South Africa, alternate 11-year sunspot...