https://www.youtube.com/watch?v=2DF3yrq-EeQ


Sun`s Direct Role in Global Warming May Be Underestimated, Duke Physicists Report | Duke Today


"At least 10 to 30 percent of global warming measured during the past two decades may be due to increased solar output rather than factors such as increased heat-absorbing carbon dioxide gas released by various human activities, two Duke University physicists report."