4 ms·

Anyone know why this happened -> "Changes in the earth orbit around 18000 BC cause the ice caps to melt"

• defrost 2y ago
  That's a throw to a single notion of possible change that was current at the time the cartoon was drawn up. The reason for the retreat of the ice sheets remains elusive, however. Whereas there was a change in the relative strength of the sun roughly 20,000 years ago thanks to variations in the planet's orbit, it was smaller than changes that preceded it and failed to trigger a melt. From a Scientific American article of 2012 that discusses another paper with an alternative notion of cause: What Thawed the Last Ice Age? https://www.scientificamerican.com/article/what-thawed-the-last-ice-age/ https://www.scientificamerican.com/article/what-thawed-the-l... Similary in 2010 Columbia Climate School looks at the same discussion of possible causes: https://www.earth.columbia.edu/articles/view/2707 https://www.earth.columbia.edu/articles/view/2707
  • cen4 2y ago
    Thanks!