Study done in 2012 showing it was warmer during the roman times and the Roman era and the Middle Ages. Roman grew grapes in Britain back then.
““We found that previous estimates of historical temperatures during the Roman era and the Middle Ages were too low,” says Esper.”
Mann knew this and left it out on purpose…To fool you!
It’s okay.
I know that you were trying to use localized data to show a global effect.
It’s not the first time or will it be the last time that this is brought up.
All the data shows is a warm period in Northern Europe.
That’s it.
It’s called “global warming” or it was until it was changed to “climate change” 
and we are told its a worldwide critical concern so what is your point exactly?
Grew wine in Britain…
“In Roman times, Britain had a slightly warmer climate than now; and, with 500 to 600mm of rain a year, Northamptonshire is at the lower end of the British precipitation range, which would have meant fewer fungal problems. The area would therefore have been suitable for grape production.”
The Medieval warm period has been hashed out over and over.
There was a localized warming of the North Atlantic but there is little evidence that it translated to a larger global phenomenon.
His point was that the OPer cited localized warming in ONE PART of the world as diconfirming evidence of GLOBAL warming.
Do you understand now?
So, throw out the ice cores, got it thanks… The north is where climate change has the most effect. It’s where we have 90% of the records, also… We have about zero southern hemisphere data before the 1950.
This article say the MWP was global…
The Medieval Warm Period (MWP) was a time of warm climate from about 900 A.D. to 1300 A.D. when global temperatures were apparently somewhat warmer than at present.
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/medieval-warm-period
If you’re not concerned with climate change and rising sea levels, think about this.
Refugees.
From FLORIDA.
Thats because too many unintelligent on the issue people would hear global warming and then use localized data to try and argue against it just like the OP did. Someone looks outside and sees snow and then tries to say global warming is false.
Part of what global warming has done has shift weather patterns. So some places actually have gotten colder, i.e. a shifting weather pattern, but larger areas have gotten warmer.
Also a natural cause of increased warming is more volatile weather due how weather events are fueled by the differences in air temps as as you increase the upper range you increase the fuel.
Thus climate change is a better phrase since its inclusive of all the effects.
Still waiting on the coming ice age scientists were predicting in the late 70’s… The scientists can’t even keep their story straight within the last 40 years and we’re supposed to believe they can tell hundreds of years ago or hundreds of years in the future what is going to happen??
Just another cause to keep liberals up at night and not thinking… Besides, we all know global warming is being caused by cow farts.
I wonder what “Global Warming” Scientists are saying
about the reason for the current possible record setting “Cold”
Temperatures as of late?
