“The cornerstone principle of the global warming theory, anthropogenic global warming (AGW), is built on the premise that significant increases of modern era human-induced CO2 emissions have acted to unnaturally warm Earth’s atmosphere.
“There are numerous major problems with the AGW principle.
“Identification of Volcanic vs. Man-made CO2
“Natural volcanic and man-made CO2 emissions have the exact same and very distinctive carbon isotopic fingerprint. It is therefore scientifically impossible to distinguish the difference between volcanic CO2 and human-induced CO2 from the burning of fossil fuels. This major problem with the AGW principle has been rationalized away by consensus climate scientists who insist, based upon supposedly reliable research, that volcanic emissions are minuscule in comparison to human-induced CO2 emissions (Gerlach 1991).