National Geographic posted this picture of Oroville Reservoir in California, and said the low water levels were caused by a megadrought which rivaled anything in the last 1,200 years.
Four years ago, Oroville Reservoir had so much water in it, 180,000 people were evacuated below the dam, because it was in danger of collapsing.
California was deal with historic rainfall.
The press blamed the record precipitation on global warming.
There was record rain and snow that winter.
A few months before that, Governor Brown and the press announced the California permanent drought.
Forty years earlier, Governor Brown also announced the permanent drought.
And a few months later, California was flooding.
There is no trend in California precipitation since the end of the 19th century, and the last 48 months have had above average precipitation.
But longer term, tree ring records show that California is prone to 200 year long droughts and the 20th century was unusually wet.
Thirty years ago, the New York Times knew that the 20th century was unusually wet in California, and that the Medieval Warm Period was global.
“Lisa J. Graumlich, who examines the ring patterns of foxtail pine trees and western junipers in the Sierra Nevada, has compiled a detailed record of the year-to-year variation in temperature and precipitation over the last thousand years.
She has seen in the North American trees the feathery but unmistakable signatures of the Medieval Warm Period, a era from 1100 to 1375 A.D. when, according to European writers of the time and other sources, the climate was so balmy that wine grapes flourished in Britain and the Vikings farmed the now-frozen expanse of Greenland; and the Little Ice Age, a stretch of abnormally frigid weather lasting roughly from 1450 to 1850. A Crucial Question
“We can now see that these were global climate phenomena, not regional temperature variations,” she said. “The question is, how did we get those warmer temperatures during pre-industrial times, and what can we learn from those conditions about what is going on today?”
Western landscapes in presettlement era were very smoky places, and droughts were caused by La Nina.
The press is directly inverting science and reality, and the reason they are doing this is because they are being paid to lie by very rich and powerful people.
via Real Climate Science
May 10, 2021 by tonyheller