Two New Science Papers Cast Further Doubt on Human Contribution to Climate Change
Two important papers have recently been published that question the extent to which humans are causing global warming by burning fossil fuel and releasing carbon dioxide into the atmosphere. The works will of course be ignored by mainstream media outlets, but they represent further evidence that a more nuanced view of human-caused or anthropogenic warming is gaining traction among scientists, tired of working within the political constraints of ‘settled’ science.
In a paper to be published next month in the journal Health Physics, three physics professors led by Kenneth Skrable from the University of Massachusetts examine the atmospheric trail left by CO2 isotopes and conclude that the amount of CO2 released by fossil fuel burning between 1750 and 2018 was “much too low to be the cause of global warming”.
Three carbon isotopes are found in the atmosphere, 12C, 13C and 14C. The latter is produced by cosmic rays and is in a constant state of activity but the other two are contained in the gas entering the atmosphere. The carbon in living matter has a slightly higher proportion of 12C. Although only about 4% of CO2 entering the atmosphere every year is produced by human activity, it is said very slightly to alter the balance of the other atmospheric isotopes. As a result it is often used as ‘proof’ that rising CO2 levels are primarily the result of fossil fuel burning.
But the Massachusetts team found that claims of the dominance of anthropogenic fossil fuel in the isotope record have involved the ‘misuse’ of 12C and 13C statistics to validate such suggestions. They conclude that the assumption that the increase in atmospheric CO2 is dominated by or equal to the anthropogenic component is “not settled science”.
Furthermore, they go on to state: “Unsupported conclusions of the dominance of the anthropogenic fossil component of CO2 and concerns of its effect on climate change and global warming have severe potential societal implications that press the need for very costly remedial actions that may be misdirected, presently unnecessary, and ineffective in curbing global warming.”
Two New Science Papers Cast Further Doubt on Human Contribution to Climate ChangeRead More