Right before the start of the Little Ice Age. Wonder if the 'red blob' played a major role then as well.
Unfortunately prior to the satellite SST era (pretty much 1995 and before as far as easily available archives are concerned) any red blob that might have occurred went unnoticed.
However the one parallel to this might have occurred in 1939 when enough warm water had pushed north along the US west coast to allow for a hurricane to form and track into Long Beach, CA. That is something that has not occurred since with all hurricanes headed in that general direction petering out several hundred miles short due to the water being too cool.
Billhunter "All these fifty years of conscious brooding have brought me no nearer to the answer to the question, “What are light quanta?”. Nowadays every Tom, Dicck and Harry thinks he knows it, but he is mistaken." (Einstein shortly before his death 1954)
About twelve years ago, a similar article about CO2 levels being the highest in the last 600 000 years, made me wonder... Till then, I had sort of believed the AWG conjecture; it seemed plausible. But then I realized something: Earth was 4500 million years old, and I had visited the Paleomap Project web page and remembered something about CO2 levels long before we humans came to be.
So I read a little more. And a little more... And suddenly, the AGW fraud was clear before my eyes.
An awful lot of "coulds" and "mights" and "invisible connections" in there, Mr. Sig. The conclusion is clear, though. Man made global warming is dooming us all. God help us.
I am beginning to think that most of these foolish authors think that climate somehow is static and never changes. They seem so very surprised to find out that climate is a long running variable.
To think, if we all went back to dark, cold houses. Limited food intake and mass starvation that the result would be a stable climate. Or at least, what they think is a stable climate. What they would learn is that even WITH dark, cold homes, mass starvation etc the climate would continue to be variable.
To think that someone........(US)........pays for these findings!!!!!
If you don't read the newspaper you are uninformed, if you do read the newspaper you are misinformed. -- Mark Twain