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Found 12 results

  1. Belo are a great series of lectures (2016) that summarizes what is known and unknown about the Cryogenian. Earth Dynamics Research Group CCFS sponsored short course on Snowball Earth https://www.youtube.com/playlist?list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n Snowball Earth Lecture 1 - Snowball geology Earth Dynamics Research Group https://www.youtube.com/watch?v=RxFmcgjXtgI&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=2 Snowball Earth Lecture 2 - Snowball climate dynamics Earth Dynamics Research Group https://www.youtube.com/watch?v=8ZTR-DaT-w0&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=3 Snowball Earth Lecture 3 - Snowball geochemistry Earth Dynamics Research Group https://www.youtube.com/watch?v=AfC-YRLCKGU&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=4 Snowball Earth Lectures 4&5 - Snowball geobiology & The origin of Laurentia Earth Dynamics Research Group https://www.youtube.com/watch?v=vrjmSVcIGo0&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=5 Snowball Earth Lecture 6 - The Great Oxidation Event and a Siderian snowball earth Earth Dynamics Research Group https://www.youtube.com/watch?v=z2zXLswH02s&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=6 Yours, Paul H.
  2. Retracing Antarctica’s Glacial Past LSU geologist uncovers new data to inform future sea level rise https://www.lsu.edu/mediacenter/news/2018/09/25gg_bart_scireports.php https://www.sciencedaily.com/releases/2018/09/180925140417.htm https://phys.org/news/2018-09-retracing-antarctica-glacial.html The open-access paper is: Bart, P.J., DeCesare, M., Rosenheim, B.E., Majewski, W. and McGlannan, A., 2018. A centuries-long delay between a paleo-ice-shelf collapse and grounding- line retreat in the Whales Deep Basin, eastern Ross Sea, Antarctica. Scientific reports, 8(1), article 12392. https://www.nature.com/articles/s41598-018-29911-8 Yours, Paul H.
  3. If You Hate Ice Ages, Thank a Farmer

    Ancient farmers spared us from glaciers but profoundly changed Earth's climate University of Wisconsin-Madison, September 6, 2018 https://www.sciencedaily.com/releases/2018/09/180906141507.htm If You Hate Ice Ages, Thank a Farmer Chopping down forests and irrigating rice paddies boosted greenhouse gases enough to prevent the onset of a new ice age Ronald Bailey|Sep. 10, 2018 2:05 pm https://reason.com/blog/2018/09/10/thank-a-farmer-if-you-hate-ice-ages The papers are: Vavrus, S.J., He, F., Kutzbach, J.E., Ruddiman, W.F. and Tzedakis, P.C., 2018. Glacial Inception in Marine Isotope Stage 19: An Orbital Analog for a Natural Holocene Climate. Scientific reports, 8(1), no.10213. (open access paper) https://www.nature.com/articles/s41598-018-28419-5 http://discovery.ucl.ac.uk/10053186/1/Vavrus_Glacial.pdf Ruddiman, W.F., 2003. The anthropogenic greenhouse era began thousands of years ago. Climatic change, 61(3), pp.261-293. http://users.clas.ufl.edu/rrusso/gly6932/ruddiman_03.pdf http://www.whoi.edu/cms/files/ruddiman03cc_68543.pdf Yours, Paul H.
  4. Climate Change May Have Contributed To The Extinction Of Neanderthals And Rise Of Modern Humans David Bressan, Forbes Magazine, September 1, 2018 https://www.forbes.com/sites/davidbressan/2018/09/01/climate-change-may-have-contributed-to-the-extinction-of-neanderthals-and-rise-of-modern-humans/ Cold, dry climate shifts linked to Neanderthal disappearance by Malcolm Ritter, August 27, 2018 https://phys.org/news/2018-08-cold-climate-shifts-linked-neanderthal.html The open access paper is Michael Staubwasser, Virgil Drăgușin, Bogdan P. Onac, Sergey Assonov, Vasile Ersek, Dirk L. Hoffmann, and Daniel Veres, 2018, Impact of climate change on the transition of Neanderthals to modern humans in Europe. Proceedings of the National Academy of Sciences Aug 2018, 201808647; DOI: 10.1073/pnas.1808647115 http://www.pnas.org/content/early/2018/08/21/1808647115 Yours, Paul H.
  5. World's First Animals Caused Global Warming

    Scientists Just Found The Cause of Earth's First Global Warming That Triggered Mass Extinctions Michelle Starr, Science Alerts, July 3, 2018 https://www.sciencealert.com/world-s-first-animals-cambrian-explosion-global-warming-mass-extinction World's first animals caused global warming University of Exeter, PhysOrg, July 2, 2018, https://phys.org/news/2018-07-world-animals-global.html https://www.sciencedaily.com/releases/2018/07/180702094038.htm http://www.exeter.ac.uk/news/featurednews/title_667955_en.html The abstract is at: Sebastiaan van de Velde et al, Early Palaeozoic ocean anoxia and global warming driven by the evolution of shallow burrowing, Nature Communications (2018) vol. 9, Article number: 2554 , DOI: 10.1038/s41467-018-04973-4 https://www.nature.com/articles/s41467-018-04973-4 Electronic supplementary material for above paper at: https://www.nature.com/articles/s41467-018-04973-4#Sec14 https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-018-04973-4/MediaObjects/41467_2018_4973_MOESM1_ESM.pdf Peer Review file for this paper at: https://www.nature.com/articles/s41467-018-04973-4#Sec14 https://static-content.springer.com/esm/art%3A10.1038%2Fs41467-018-04973-4/MediaObjects/41467_2018_4973_MOESM2_ESM.pdf Yours, Paul H.
  6. Was the Bering Land Bridge a good place to live? By Ned Rozell, University of Alaska Fairbanks, February 24, 2018 https://www.adn.com/alaska-news/science/2018/02/24/was-the-bering-land-bridge-a-good-place-to-live/ Was the ice age's Bering Land Bridge a good place to live? By Ned Rozell, University of Alaska Fairbanks, February 28, 2018 http://www.valdezstar.net/story/2018/02/28/main-news/was-the-ice-ages-bering-land-bridge-a-good-place-to-live/1842.html Yours, Paul H.
  7. Pollen Weighs in on a Climate Conundrum

    Shakum, J. D., 2018. Pollen weighs in on a climate conundrum Science News and Views, Paleoclimate, January 31, 2018 https://www.nature.com/articles/d41586-018-00943-4 "Simulations by climate models show that Earth warmed during the Holocene epoch, whereas ocean sedimentary cores suggest that global cooling occurred. An analysis of fossil pollen samples now sides with the models." Jeremiah Marsicek, Bryan N. Shuman, Patrick J. Bartlein, Sarah L. Shafer & Simon Brewer, 2018, Reconciling divergent trends and millennial variations in Holocene temperatures. Nature. 554, pages 92–96 doi:10.1038/nature25464 https://www.nature.com/articles/nature25464 Yours, Paul H.
  8. Radiolarians Record Shifting Currents

    Tiny Fossils Record Big Shifts in Ocean Currents Minerals stored in microscopic fossils hint at the subtle ways ocean currents link far-flung food webs. by K. N. Smith, Hakai Magazine, January 3, 2018 https://www..com/news/tiny-fossils-record-big-shifts-in-ocean-currents/ Yours, Paul H.
  9. The Anthropocene, the New Age of Humans Catalyst, Australian Broadcasting Corporation http://www.abc.net.au/catalyst/stories/4574615.htm More videos - Archaeology & History http://www.abc.net.au/catalyst/stories/by-topic/ARCHAEOLOGY&HISTORY.htm More videos - fossils http://www.abc.net.au/catalyst/stories/by-topic/FOSSILS.htm Yours, Paul h.
  10. Did humans create the Sahara desert?

    Did humans create the Sahara desert? New research challenges the idea that changes in the Earth's orbit triggered Sahara desertification, Frontiers, March 14, 2017 https://www.sciencedaily.com/releases/2017/03/170314111320.htm https://blog.frontiersin.org/2017/03/14/did-humans-create-the-sahara-desert/ David K. Wright. Humans as Agents in the Termination of the African Humid Period. Frontiers in Earth Science, 2017; 5 DOI: 10.3389/feart.2017.0000 http://journal.frontiersin.org/article/10.3389/feart.2017.00004/full https://www.academia.edu/31079511/Humans_as_agents_in_the_termination_of_the_African_Humid_Period._Frontiers_in_Earth_Science_5_4_doi_10.3389_feart.2017.00004_2017_ Yours, Paul H.
  11. Quaternary climate cycles

    NB:Atlantic Coast http://rstb.royalsocietypublishing.org/content/royptb/318/1191/661.full.pdf
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