claim: Ice cores from Greenland show no significant warming, casting doubt on the climate change theory
evidence: The effect of atmospheric CO2 concentrations on global temperatures is well established; as concentrations rise, global warming increases through the greenhouse effect. Scientific studies show that modern global warming is primarily driven by increasing CO2 emissions from human activities. Based on the available scientific evidence, solar variation has had no significant effect on modern global warming compared to rising atmospheric CO2 concentrations.