NCDC Louisiana year-to-date mean temperatures with five year running mean in red. Louisiana warmed from 1895 to 1950, cooled for 15 years, and then warmed again until the late 1990s. Fifteen of Louisiana’s twenty warmest years occurred before 1960. The warmest year was 1911, when CO2 levels were 300 ppm. Even with USHCN upwards adjustments of recent data and downwards adjustments of past data, Louisiana has not shown any warming.
I’m sorry if I’m being repetitive, but the cold years 1960-1980 appear to be the anomoly, not the more recent years. A large percentage of what they call “warming” appears to be a rebound from that cold period back to the previous “normal”.
Top climatologists tell us that the global cooling of that period never happened and was made up by Newsweek, Time and other magazines.
Andy:
Normal is trending warm and trending cool or variable climate with obvious trends that match Ocean Atmosphere circulation patterns such as the AMO and PDO.
It appears that Louisiana’s weather is a result of ocean atmosphere conditions in the Gulf Of Mexico. That gives it a mild humid climate that is susceptible to tropical storms.
Has anyone come up with a scientific explanation for the cold years between 1960 and 1980?
PDO and other long term ocean atmosphere patterns!
Have you read any of Stephen Wilde’s writings at Climate Realist? He is big on the Oceans controlling regional weather patterns.
The “Consensus” view is particulate matter in the atmosphere. ( human induced pollution) Even if it did coincide with expected long term weather patterns that are observed throughout history.