The U.N. estimates it would cost $4 trillion annually to meet the Paris climate accords. But the $3.8 trillion spent in the last 10 years only reduced fossil fuel use by .1% in each of those years. Additionally, this spending won’t counter the natural warming and cooling caused by the sun’s cycles. The sun’s cycles are 50% responsible for the natural variability of climate warming according to thousands of climate scientists like the two German scientists that wrote “The Neglected Sun: How the Sun Precludes Climate Catastrophe.” Both were founding members of the U.N.’s IPCC. If man is only 50% responsible for climate warming it undermines the U.N.’s “Climate Catastrophe” scenario.