The Last Time the Globe Warmed

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Publicado 2017-12-04
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Imagine an enormous, lush rainforest teeming with life...in the Arctic. Well, there was a time -- and not too long ago -- when the world warmed more than any human has ever seen. (So far)

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Special thanks to Nobumichi Tamura for allowing us to use his work:
spinops.blogspot.com/

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Todos los comentarios (21)
  • @unvergebeneid
    What's important to keep in mind is that a quantitative difference in the rate of change can mean a qualitative difference in the effect of that change. E.g. if the change is slow enough for a species to adapt, it adapts. If it's faster than it can adapt, the species is gone. Which in turn might cause other species to go extinct, even if they could've otherwise adapted.
  • It’s so weird to think that at one point in time, the internal human body temperature was a cold day.
  • @SeanFication
    The globe has been warming for the last thousand years at least. That's why the last ice age is "the last ice age" and not the current ice age.
  • @oldie4210
    I have a friend who was stationed in the high artic in the early 60's with the military. He recalled petrified tree stumps with roots 3 to 4 feet around, under neath a glacier.
  • @JM-bl3ih
    If only there was an organism on earth that consumed excess CO2 and let put oxygen. We could put these things everywhere. 🤔🤔🤔
  • I can't even begin to tell you how much I love these videos! Thanks so much!!!
  • @stephenmorse342
    The transient mantle plume under the Faroe Shetland basin at the end of the Palaeocene caused massive uplift of the ocean floor (minimum of 700m to 1000m) and cut off the ocean circulation to and from the north at the time. This has been mooted as one of the contributing factors. Also, a warming sea cannot hold as much CO2 so there is a chicken and egg scenario wrt CO2 and warming.
  • @Anonymous-nn4sk
    Imagine how many plant and animal species in the arctic went extinct during the cooling after PETM but sea animals may have thrived due to the cooling?
  • @anime5h_m1shr4
    Awesome video as always. Once again wish you the very best for a speedy recovery, Hank. You got this.
  • @sebachinger
    Love this channel and the information that you share in a way that is great for all folks to absorb and understand :)
  • @ShirinRose
    I wonder what it was like in the rainforests at the poles during the long night of winter.
  • @davidhobbs5679
    Australia's inland sea would be an interesting topic. Especially how it slowly dries up and the effect it had on climate.
  • @lostmrsmoss
    Good info... I had to slow the video to 75% speed. When the speaker talks so quickly, my brain doesn't have time to process one bit of information before the next one comes.
  • I wish Chicago, New York and Philadelphia were tropical right now.
  • @alfinito44
    the title of this video should be: when Greenland was green
  • @stevencole7331
    It would be interesting to see maps of the world with types of climates during this period for all areas
  • @efranlaboy554
    I seen that already happening in earth the Tunguska areas in where the tundras are the permafrost is melting and the smell tells me that
  • @RD9_Designs
    So nice to see a young Hank Greene here! I enjoy him so much on the SciShow channel! PBS should invite him back sometime. Soon! He has cancer!