The Massive Flood That Triggered an Ice Age

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13,000 years ago, North America seemed to be thawing from a 2.6 million-year ice age. Then, a huge swath of Earth was suddenly plunged back into the cold for 1,000 years. To understand why we need to talk about megafloods. Check out the PBS Eons episode about epic floods: https://www.youtube.com/watch?v=YWZgfPGtQEs&feature=youtu.be Hosted by: Stefan Chin and Blake De Pastino SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at https://www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Greg, Alex Schuerch, Alex Hackman, Andrew Finley Brenan, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources https://www.tandfonline.com/doi/pdf/10.1080/00206814.2016.1204748 https://www.clim-past.net/14/969/2018/ https://www.eoas.ubc.ca/research/glaciology/research/Publications/ClarkeLeveringtonTellerDyke(Science-2003).pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.384.6712&rep=rep1&type=pdf http://www.pnas.org/content/109/49/19928 https://www.sciencedirect.com/science/article/abs/pii/0277379194900051 https://web.archive.org/web/20140222170725/http://www.eeescience.utoledo.edu/Faculty/fisher/Fisher/Publications_files/Fisher_etal_QSR02.pdf https://pdfs.semanticscholar.org/c6ae/39202d3141d5b7efbb205d48eb58e1b2195d.pdf https://www.nature.com/articles/s41561-018-0169-6 https://www.nature.com/articles/nature08954 https://sites.physics.utoronto.ca/peltier_wr/selected-publications/pubs_recent/lev-tarasov-w-r-peltier-a-calibrated-deglacial.pdf https://www.sciencedirect.com/science/article/abs/pii/S0277379101001457 https://pdfs.semanticscholar.org/5426/32c53804f2e93b0b8724b68003008093ed6d.pdf http://assets.cambridge.org/97805218/68525/excerpt/9780521868525_excerpt.pdf https://www.lpi.usra.edu/meetings/lpsc2002/pdf/1091.pdf https://www.researchgate.net/publication/31969704_Subglacial_origin_of_Lake_Agassiz-Ojibway_final_outburst_flood https://pdfs.semanticscholar.org/5dc7/a51fd7af8e06ac932c7b76127c7b971cbb16.pdf https://pubs.usgs.gov/circ/2004/circ1254/pdf/Hold_On/circ1254_051904_old.pdf https://b8qs92z2k332mma2f5t7n716-wpengine.netdna-ssl.com/wp-content/uploads/sites/27/2017/12/AltaiFlood_red.pdf http://discovermagazine.com/2013/oct/05-what-killed-off-the-woolly-mammoths https://www.scientificamerican.com/article/lost-giants-did-mammoths/ https://www.eoas.ubc.ca/research/glaciology/research/IceDam.html https://books.google.com/books?id=gXgyHLT_hwIC&pg=PA31#v=onepage&q&f=false https://www.academia.edu/4296796/Human_Population_Decline_in_North_America_during_the_Younger_Dryas http://science.sciencemag.org/content/282/5393/1446 http://science.sciencemag.org/content/362/6416/738 https://www.sciencenews.org/article/younger-dryas-comet-impact-cold-snap https://shubeika.ccrs.ku.dk/about/ https://www.scientificamerican.com/article/slow-motion-ocean-atlantics-circulation-is-weakest-in-1-600-years/ https://www.livescience.com/31810-big-freeze-flood.html “Fundamentals of Geomorphology” pg 247 by Richard John Huggett “The Younger Dryas Climate Event”, The Encyclopedia of Quaternary Science, by A. E. Carlson Image Sources: https://www.flickr.com/photos/manitobamaps/2091302531 https://en.wikipedia.org/wiki/File:Ice_age_fauna_of_northern_Spain_-_Mauricio_Ant%C3%B3n.jpg https://commons.wikimedia.org/wiki/File:Clovis_Rummells_Maske.jpg
Watch video on YouTube.