The UN Intergovernmental Panel on Climate Change (IPCC) is responsible for providing the hobgoblin of global warming. They claim CO2 is almost the sole cause of warming while effectively ignoring the sun. Their claim that the sun is of little consequence is unbelievable and only a measure of their deception and lousy science. They only looked at one part of solar influence on weather and climate and didn’t do that accurately. Instead they used it to support their claim the temperature changes are not caused by the sun and therefore must be due to CO2. They only considered irradiance (heat and light) and concluded, incorrectly, it was of little consequence. They assume, because the variation is approximately 0.1% over approximately a 30-year period, it is of little consequence.
The number certainly seems small when expressed as a percentage of 100. However, it is estimated that only a 6% variation is sufficient to explain all known temperature variation in the history of the Earth. So 0.1% is significant in relation to 6%. To put this in context consider how much the temperature drops between night and day or even for the brief period of a total eclipse. As solar and climate scientist Willie Soon said, “We have known for 80 years that even small changes in solar radiation have a strong effect on Earth’s temperature and climate.”
The IPCC do not include changes in sun/earth relationships collectively called the Milankovitch effect, a major cause of temperature change.
They ignore the high correlation between sunspots and global temperature which has a warmer Earth with many sunspots and colder with fewer. They claimed, legitimately, you must not assume cause and effect. However, they made the illegitimate claim there was no mechanism and the research was not produced in time to meet their deadline for inclusion. Both claims are wrong. A proposed mechanism first appeared in Science in 1991 when Christensen and Lassen published “Length of the Solar Cycle: An indicator of solar activity closely associated with Climate.” Since then several articles appeared elaborating on the mechanism, most before the IPCC deadline. Why did they ignore it? Likely because it showed the sun explained temperature changes. Typical of the pattern of their manipulations they did break the deadline rule when it suited their argument.
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