The much touted climate Armageddon by politicians, which is supposed to happen within the next 9 to 12 years, is a pure science fiction plot unless global warming across the continental U.S. exhibits a consistent trend of temperatures accelerating to new highs over recent decades.
But have accelerating maximum temperatures in the U.S. actually happened on a consistent basis?
Nope.
A simple review of recent decadal empirical evidence - from NOAA climate scientists - indicates clearly the U.S. climate is not suffering from a condition of accelerating maximum temperatures that the politicians, bureaucrats and mainstream media have been propagandizing.
The following charts establish that during the majority of recent decades, the trend for maximum temperatures is not of dangerous accelerating rates but instead periods of decreasing rates. And although the 2020s decade is still in its earliest years, this decade's trend so far for U.S. maximum temperatures is downward, in a continuation from the two prior decades. During both the 1990s and 1980s, the warming trends of maximum temperatures in the U.S. are evident. But neither decade exhibits an accelerated temperature trend that would be the harbinger of climate doomsday that has been prophesied. |
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The 1970s were another decade of cooling maximum temps, and although not shown, so were the 1960s. One has to go back all the way to the 1930s and 1940s to find two decades in a row that had maximum U.S. temperatures increasing at a positive rate. In addition, an important observation is that every single decade sees a significant upward trend for atmospheric CO2 levels. Yet max temperatures in the U.S. often do much the opposite. |
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Again, the empirical evidence simply does not exist that would support claims of a mass extinction for our American society from an accelerating, terrible global warming. This simple look at decadal trends of maximum temperatures simply refutes the claims of existential threat and completely undercuts the demands for the end of fossil fuels. Additional temperature charts. Notes: Excel used to: convert Fahrenheit to Celsius; plot monthly U.S maximum temps & CO2 levels; to calculate/plot temp & CO2 linear trends. |
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