claim: Peer-reviewed research, physics, and math all tell us that a grand solar minimum would have no more than a 0.3°C cooling effect, barely enough to put a dent in human-caused global warming.
evidence: Human activities, primarily the burning of fossil fuels ( coal, oil, and natural gas ), and secondarily the clearing of land, have increased the concentration of carbon dioxide, methane, and other heat-trapping ( greenhouse ) gases in the atmosphere...There is international scientific consensus that most of the warming observed over the last 50 years is attributable to human activities.