27 Simple Bullet Points Prove Global Warming by the Sun, not CO2: By a Geologist for a Change

1) The IPCC (United Nations Intergovernmental Panel on Climate Change) has no geologists among the 100s of authors of its last major report (2013-14) & at most 1 in the next (2022; see my Tech. Note 2019-10). Thus IPCC focuses on only the last 150 years (since thermometer records began, c. 1850), yet Earth is 30 million (sic) times older, 4.5 billion years! Geologists know Earth has always warmed and cooled. Climate change is perfectly normal.

2) The IPCC’s very existence relies on public belief in man-made or ‘anthropogenic’ global warming (AGW) by

CO2. IPCC authors, mostly government & university researchers, are biased by strong vested interests in AGW (publications; continuance of salaries; research grants). Similarly, universities have sacrificed their impartiality by hosting institutes mandated to confirm & act on AGW, e.g. Grantham Institute (Imperial College), Tyndall Centre.

3) The often-parroted ‘97% consensus among scientists that global warming is man’s fault’ (CO2 emissions) is untrue. It refers in fact to surveys of just a relatively small group of ‘climate scientists’ (a new type of generalist scientist, with strong incentives for bias; see Bullets 2 & 15), moreover only those who are ‘actively publishing’.

4) No educated person ‘denies’ modern global warming; it’s been measured (Bullet 11). ‘Global warming

deniers’ is a deceitful term for man-made global warming doubters & deniers (most of Earth’s real scientists?).

5) CO2 is a ‘greenhouse gas’. But as CO2 rises, its theoretical heat-trapping ability sharply declines, already 67% ‘used up’ at 100 parts per million (ppm) CO2, 84% at 300ppm (NB 275ppm when industrial CO2 output began; Bullet 8), 87% at 400ppm (today 415ppm, or 0.04%) and >99% at 1000ppm. Moreover, Climate Sensitivity (CS), the warming due to doubling CO2, is guesswork. IPCC ‘estimates’ CS from climate models (circular reasoning) as probably between 1.5 & 4.5 (300% contrast!), but models are defective (Bullet 6). In reality CS might be very near zero, perhaps explaining why up to 7,000ppm in Phanerozoic time (Bullet 7) did not cause ‘runaway’ warming.

6) IPCC climate models are so full of assumptions as to be useless or (worse) misleading, e.g. forecast 1995-2015 warming was 2-3 times too high! Bullet 19 gives another drastic failure. Even Wiki (2019) admits: “Each model simulation has a different guess at processes that scientist don't understand sufficiently well”. Models also dismiss the sun’s fluctuations & omit the multi-decade delay between these & the resulting warming or cooling. This time-lag is due to ocean thermal inertia (mixing-time), grossly underestimated by IPCC (Bullets 15, 21).

7) For ~75% of the last 550 million years, CO2 was 2 to 15 times higher than now. Evolution flourished, with CO2 enabling plant photosynthesis, the basis of all life. Extinction events due to overheating by CO2 are unknown.