Yet Another Study Finds Previous Warm Periods Warmer Than Today

If only those darned people during the Roman and Medieval Warm Periods didn’t drive fossil fueled vehicles and leave their appliances plugged in when not in use. And hair spray! They used lots of hair spray! I’ve seen the movies!

(Daily Caller) 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 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.

Well, bummer

Kullman also wrote that “summer temperatures during the early Holocene thermal optimum may have been 2.3°C higher than present.” The “Holocene thermal optimum was a warm period that occurred between 9,000 and 5,000 years ago. This warm period was followed by a gradual cooling period.”

Of course, Warmists will argue that Earth will get hotter in 50-100 years from now (when no one will remember their predictions). Gotta keep that money train rolling, and the attempt to institute more and more Progressive government with all the redistribution and Big Government control that comes with.

C3 Headlines notes that the study is peer reviewed (because Warmists always ask, despite the real problems with peer review for Warmists studies), and notes, among other things from the study

that “the emergence during the past two millennia of at least two short-term tree line and thermal excursions to higher than present levels (i.e. early 21st century) indicates that the current performance of the ecological and climatic systems is well within the envelope of the natural variability

Charts and graphs available at C3 Headlines.

I will add this caveat: I’ve noted time and time again that Mankind does bear some blame for the warming during the Modern Warm Period, mostly from agriculture, landfills, land use, and the Urban Heat Island Effect. Yes, release of GHGs does play a small part, including from CO2, methane, and few others. Still, the climatic changes are primarily natural during the Modern Warm Period. The Sun, water vapor, Earth processes, and others. Just like has been the norm for billions of years.

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2 Responses to “Yet Another Study Finds Previous Warm Periods Warmer Than Today”

  1. Jeffery says:

    Not quite.

    Professor Kullman found that a mountain range in Sweden showed higher temps than now.

    Here’s the abstract from his paper:

    The postglacial tree line and climate history in the Swedish Scandes have been inferred from megafossil tree remains. Investigated species are mountain birch (Betula pubescens ssp. czerepanovii), Scots pine (Pinus sylvestris) and grey alder (Alnus incana). Betula and Pinus first appeared on early deglaciated nunataks during the Lateglacial. Their tree lines peaked between 9600 and 9000 cal. a BP, almost 600 m higher than present-day elevations. This implies (adjusted for land uplift) that early Holocene summer temperatures may have been 2.3°C above modern ones. Elevational tree line retreat characterized the Holocene tree line evolution. For short periods, excursions from this trend have occurred. Between c. 12 000 and 10 000 cal. a BP, a pine-dominated subalpine belt prevailed. A first major episode of descent occurred c. 8200 cal. a BP, possibly forced by cooling and an associated shift to a deeper and more persistent snow pack. Thereafter, the subalpine birch forest belt gradually evolved at the expense of the prior pine-dominated tree line ecotone. A second episode of pine descent took place c. 4800 cal. a BP. Historical tree line positions are viewed in relation to early 21st century equivalents, and indicate that tree line elevations attained during the past century and in association with modern climate warming are highly unusual, but not unique, phenomena from the perspective of the past 4800 years. Prior to that, the pine tree line (and summer temperatures) was consistently higher than present, as it was also during the Roman and Medieval periods, c. 1900 and 1000 cal. a BP, respectively.

  2. Gumballs_Of_Winter says:

    the pine tree line (and summer temperatures) was consistently higher than present, as it was also during the Roman and Medieval periods,

    thanks for pointing out that the paper proved the point of the post.

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