During the late 20th century, "warmunists" began claiming the rise of CO2 in the air was almost entirely the result of burning fossil fuels.
4.5 billion years of natural climate changes suddenly stopped ? ... and man made CO2 suddenly became the climate controller ? ... with no reasonable explanation of how that happened.
(It didn't happen -- the 'demonization' of CO2 is a left-wing cult fantasy.)
The CO2 is evil claim requires completely ignoring historical real-time CO2 measurements, by chemical methods, that showed much more CO2 in the air than Warmunists claim today.
These chemical analyses show fluctuating CO2 levels between 300 and more than 400 ppm.
More than 90,000 individual chemical measurements of CO2 levels were recorded between 1812 and 1961.
They are ignored by warmunists.
More than 90,000 individual chemical measurements of CO2 levels were recorded between 1812 and 1961.
They are ignored by warmunists.
Warmunists systematically discard a large quantity of data -- technical papers and older atmospheric CO2 chemical method
measurements -- simply because the data do not fit their "CO2 is evil"
hypothesis.
Data from 138 sources and locations were combined by Ernst-Georg Beck in 2007 to produce an annual average atmospheric CO2 curve for the Northern Hemisphere:
Data from 138 sources and locations were combined by Ernst-Georg Beck in 2007 to produce an annual average atmospheric CO2 curve for the Northern Hemisphere:
http://www.friendsofscience.org/assets/files/documents/CO2%20Gas%20Analysis-Ernst-Georg%20Beck.pdf
The only surprise is these high quality historical CO2 measurements are ignored.
Since 1812, the CO2 concentration in Northern Hemisphere air had peaks around 1825, 1857 and 1942 … with 1942 showing more than the current level of 400 ppm.
Instead of real-time CO2 measurements, the warmunists use air bubbles trapped in Antarctic ice for CO2 levels from 1750 to 1957.
The only surprise is these high quality historical CO2 measurements are ignored.
Since 1812, the CO2 concentration in Northern Hemisphere air had peaks around 1825, 1857 and 1942 … with 1942 showing more than the current level of 400 ppm.
Instead of real-time CO2 measurements, the warmunists use air bubbles trapped in Antarctic ice for CO2 levels from 1750 to 1957.
Since 1957, spectroscopic analysis against a reference gas has been used for real-time measurements.
Historical CO2 chemical analysis measurements CONTRADICT the gradual, nearly continuous, CO2 uptrend since 1750, that looks pretty on charts presented by warmunists.
Three techniques evolved since for measuring CO2 in the air since 1812: Gravimetric, titrimetric, and volumetric or manometric.
The Pettenkofer titrimetric method was the optimal standard method for more than 100 years after 1857 when it was invented.
Measurements prior to the Pettenkofer method, used since 1857, are probably not as accurate.
Wilhelm Kreutz, working at a Giessen (Germany) meteorological station, used a closed, volumetric, automatic system designed by Paul Schuftan, the father of modern gas chromatography.
Kreutz compiled over 64,000 single measurements -- about 120 samples per day -- in an 18-month period during 1939–1941.
Kreutz’s measurements were precise enough to capture the seasonal CO2 cycle, and weather events around the city of Giessen.
Historical CO2 chemical analysis measurements CONTRADICT the gradual, nearly continuous, CO2 uptrend since 1750, that looks pretty on charts presented by warmunists.
Three techniques evolved since for measuring CO2 in the air since 1812: Gravimetric, titrimetric, and volumetric or manometric.
The Pettenkofer titrimetric method was the optimal standard method for more than 100 years after 1857 when it was invented.
Measurements prior to the Pettenkofer method, used since 1857, are probably not as accurate.
Wilhelm Kreutz, working at a Giessen (Germany) meteorological station, used a closed, volumetric, automatic system designed by Paul Schuftan, the father of modern gas chromatography.
Kreutz compiled over 64,000 single measurements -- about 120 samples per day -- in an 18-month period during 1939–1941.
Kreutz’s measurements were precise enough to capture the seasonal CO2 cycle, and weather events around the city of Giessen.
Kreutz's real-time measurements found persistent CO2 levels above 400 ppm over most of a 2-year period … while warmunists claim 300 ppm in that two-year period per ice core air bubble proxies.
The IPCC claims the current 2016 average global CO2 did not reach 400 ppm. until today !
This is one of many examples of warmunists ignoring data that do not fit their theory.
This is also a rare example of warmunists using climate proxy data, when real-time measurements were available.
When they are not ignoring data, warmunists are busy "adjusting" climate history data to better fit their CO2 is evil theory.
The warmunists are an economically dangerous cult determined to scare people about CO2, with the goal of getting attention and money ... to advance their misguided attack on fossil fuels and economic growth.