If you think the Earth is hot now, try wearing plate armor in the Middle Ages.
A Swedish study found that the planet was warmer in ancient Roman times and the Middle Ages than today, challenging the mainstream idea that man-made greenhouse gas emissions are the main drivers of global warming.
The study, by scientist Leif Kullman, analyzed 455 “radiocarbon-dated mega-fossils” in the Scandes mountains and found that tree lines for different species of trees were higher during the Roman and Medieval times than they are today. Not only that, but the temperatures were higher as well.
Nothing new there, that's textbook. The temperature has been a slowly falling Natal cycle since 5000 BC. Until year 1900 and CO2 interrupts.
It's there in Mann's hockey stick.
you global warming nuts can't get anything right.
1. that data is for the northern hemisphere only the original is below.
2. all of the up cycle is from direct measurements. the down cycle is indirect. 3. placing 2 different measurement types on a chart and failing to acknowledge it is misleading. and only people who's arguments are weak need to do that.
4. weak arguments like yours need cherry picking. lets take a look at global temperature over the long long term for some perspective.
in every data set this rapid warming up swing comes with the period of direct measurement, yet this is an issue that your ilk refuse to investigate.
Pig, good points. Interesting that the tipping points seem to be for sudden increase and decrease. The Holocence will end and we will return to the earths natural state of glaciation.
The thermometer was only invented around 1650, so prior to that there is no choice but to use proxy data.
so why does the uptrend suddenly begin with direct readings, and why is it not clearly labeled on your chart. nd why does the peroid where the two over lap not match very well? because it is designed to confuse and shock the reader, not inform them as good science should.
I am the love child of Tony Abbott and Pauline Hanson
The thermometer was only invented around 1650, so prior to that there is no choice but to use proxy data.
Well there is thing that came along called Science and that made it possible to deep ice core sample and measure the home planets temp back into deep time.
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