Report: Tree Ring Evidence Says Earth was Warmer in the Roman Period and Has Been Cooling Ever Since
Researchers from Germany, Finland, Scotland, and Switzerland examined tree-ring density profiles in trees from Finnish Lapland. In this cold environment, trees often collapse into one of the numerous lakes, where they remain well preserved for thousands of years.
The density measurements correlate closely with the summer temperatures in this area on the edge of the Nordic taiga; the researchers were thus able to create a temperature reconstruction of unprecedented quality.
The reconstruction provides a high-resolution representation of temperature patterns in the Roman and Medieval Warm periods, but also shows the cold phases that occurred during the Migration Period and the later Little Ice Age.
In addition to the cold and warm phases, the new climate curve also exhibits a phenomenon that was not expected in this form.
For the first time, researchers have now been able to use the data derived from tree-rings to precisely calculate a much longer-term cooling trend that has been playing out over the past 2,000 years.
In case you’re wondering, the scientists who conducted the study are warmists themselves. So when they say the following, it’s significant.
‘This figure we calculated may not seem particularly significant,’ says Esper, ‘however, it is also not negligible when compared to global warming, which up to now has been less than 1°C.
‘Our results suggest that the large-scale climate reconstruction shown by the Intergovernmental Panel on Climate Change (IPCC) likely underestimate this long-term cooling trend over the past few millennia.’
What drives the cooling trend? The relative distance between the earth and its sole energy source, the sun. Warmists consistently downplay earth-sun relationship and even ignore the sun’s cyclical activity patterns.
The answer is that this tree-ring reconstruction isn’t any more reliable than the Mann hockey stick. It’s all voodoo. It didn’t cool, and it didn’t stay flat until 1900 and then dramatically shoot up. It did what the historical records say it did.
All of recorded human history has occured during a warming interlude of an ice age.
An Interesting and relevant observation.
Sun? What’s that?
As a confirmed Anti-Warmist, Anti-Science Mo-Ron, I continue to ponder the interaction of the solar wind and the influx of extra-solar cosmic rays, especially in the area of terrestrial cloud formation.
Im a Anti- what you said to & I dont think its real. The Lord controls the wether & he woudnt make it so hot that we woud think its to hot for us & we have a/c anyway. Maybe librals dont have a/c ha ha!
You have helped me get in touch with my Inner Moron – the one that liberals believe is at the heart of every AGW skeptic! Too bad I won’t be able to enjoy it for long as I am due to be eaten shortly by one of the polar bears that’s been treading water just off my front porch.
Polar bears? I thought they all died off during the Medieval Warm Period!
On a separate note, core samples from a couple of areas on the Moon would help provide longitudinal solar output data. I don’t recall if the Apollo missions provided such. I don’t see why we couldn’t go back at least tens of thousands of years with such data.
If “climate change” were actually investigated as a genuine science, such research would be proposed. Too bad that AGW climate research starts with the intended findings and works backwards from there.