Episode 70 - Thinner Ice

New reports find the Arctic to be the warmest it's been in millennia, and complex feedback loops mean this warming could continue unabated for decades to come. While the Arctic may feel like a distant place far removed from the concerns of daily life to many of us, the connections between melting sea ice, global ocean currents, and local weather patterns mean that the effects of a warmer Arctic are closer to home than we realize. It's cooler than cool this week as we discuss enthalpy of fusion, albedo, exploding methane in Siberia, and what it all might mean for our future.

[full transcript available]

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  • 07:56 Ice formation and the link to the world's oceans
  • 10:13 Albedo
  • 14:55 How are we connected to the Arctic?
  • 24:08 Enthalpy of Fusion?? Also the Blue Ocean Event
  • 31:25 Arctic opening: shipping, militaries, and ticks
  • 42:49 Permafrost
  • 50:00 What can we do?

Walrus Video


@misc{Alex Brockman_2019, title={Arctic is warmest it’s been in 10,000 years, study suggests}, url={https://www.cbc.ca/news/canada/north/arctic-warmest-in-10000-years-1.5094392}, journal={CBC}, author={Alex Brockman}, year={2019}, month={Apr} } @misc{Alfred Wegener Institute_2019, title={The Transpolar Drift is faltering: Sea ice is now melting before it can leave the nursery}, url={https://www.sciencedaily.com/releases/2019/04/190402081557.htm}, journal={ScienceDaily}, author={Alfred Wegener Institute}, year={2019}, month={Apr} } @misc{AP_2018, title={Melting Arctic ice opens new route from Europe to east Asia}, url={https://www.theguardian.com/world/2018/sep/28/melting-arctic-ice-opens-new-route-from-europe-to-east-asia}, journal={The Guardian}, author={AP}, year={2018}, month={Sep} } @misc{Cassella_2019, title={Carbon Emissions Are Now 10x Higher Than When The Arctic Had Crocodiles And Palm Trees}, url={https://www.sciencealert.com/carbon-emissions-today-are-vastly-worse-than-earth-s-last-warming-event}, journal={ScienceAlert}, author={Cassella, Carly}, year={2019}, month={Feb} } @misc{E360_2019, title={Melting Permafrost Releasing High Levels of Nitrous Oxide, A Potent Greenhouse Gas}, url={https://e360.yale.edu/digest/melting-permafrost-releasing-high-levels-of-nitrous-oxide-a-potent-greenhouse-gas}, journal={Yale E360}, author={E360}, year={2019}, month={Apr} } @misc{Gill_2018, title={Arctic reindeer numbers crash by half}, url={https://www.bbc.com/news/science-environment-46516033}, author={Gill, Victoria}, year={2018}, month={Dec} } @misc{Green_2019, title={UN report finds temperature rise is “locked in” for Arctic}, url={https://thehill.com/policy/energy-environment/433886-un-report-finds-globe-is-past-the-point-of-halting-temperature-rise}, journal={TheHill}, author={Green, Miranda}, year={2019}, month={Mar} } @misc{Ivan Semeniuk_2019, title={Arctic warming triggers widespread landslides, study finds}, url={https://www.theglobeandmail.com/canada/article-arctic-warming-triggers-widespread-landslides-study-finds/}, author={Ivan Semeniuk}, year={2019}, month={Apr} } @misc{James Screen_2019, title={Ice-free Arctic summers could happen on earlier side of predictions}, url={https://news.agu.org/press-release/ice-free-arctic-summers-could-happen-on-earlier-side-of-predictions/}, journal={AGU Newsroom}, author={James Screen}, year={2019}, month={Feb} } @misc{Jonathan Watts_2019, title={Military buildup in Arctic as melting ice reopens northern borders}, url={https://www.theguardian.com/world/2019/jan/24/military-buildup-in-arctic-as-melting-ice-reopens-northern-borders}, journal={The Guardian}, author={Jonathan Watts}, year={2019}, month={Jan} } @misc{Megan Eckstein_2019, title={Navy May Deploy Surface Ships to Arctic This Summer as Shipping Lanes Open Up}, url={https://news.usni.org/2019/01/08/navy-may-deploy-surface-ships-arctic-summer-shipping-lanes-open}, journal={USNI News}, author={Megan Eckstein}, year={2019}, month={Jan} } @article{Nerijus Adomaitis_2019, title={Norway to offer more acreage for Arctic oil exploration}, url={https://www.reuters.com/article/us-norway-oil-idUSKCN1QV1OX}, journal={Reuters}, author={Nerijus Adomaitis}, year={2019}, month={Mar} } @misc{Offshore Energy Today_2019, title={Norway plans to add 90 new blocks for offshore exploration, 48 in Barents Sea}, url={https://www.offshoreenergytoday.com/norway-plans-to-add-90-new-blocks-for-offshore-exploration-48-in-barents-sea/}, journal={Offshore Energy Today}, author={Offshore Energy Today}, year={2019}, month={Mar} } @article{Porter_Schoenemann_Davies_Steig_Bandara_Froese_2019, title={Recent summer warming in northwestern Canada exceeds the Holocene thermal maximum}, volume={10}, ISSN={2041-1723}, DOI={10.1038/s41467-019-09622-y}, number={1}, journal={Nature Communications}, author={Porter, Trevor J. and Schoenemann, Spruce W. and Davies, Lauren J. and Steig, Eric J. and Bandara, Sasiri and Froese, Duane G.}, year={2019}, month={Apr}, pages={1631} } @misc{romullus_2014, title={List of reflectance / albedo of common materials}, url={https://corona-renderer.com/forum/index.php?topic=2359.0}, journal={corona}, author={romullus}, year={2014}, month={Jan} } @misc{Rosen_2019, title={Methane in the atmosphere is surging, and that’s got scientists worried}, url={https://www.latimes.com/science/sciencenow/la-sci-sn-methane-atmosphere-accelerating-20190301-story.html}, journal={latimes.com}, author={Rosen, Julia}, year={2019}, month={Mar} } @article{Screen_Deser_2019, title={Pacific Ocean Variability Influences the Time of Emergence of a Seasonally Ice-Free Arctic Ocean}, volume={46}, ISSN={1944-8007}, DOI={10.1029/2018GL081393}, number={4}, journal={Geophysical Research Letters}, author={Screen, J. A. and Deser, C.}, year={2019}, pages={2222–2231} } @misc{Thorstur_2010, title={Sea Ice Formation, Growth, Decay, and Global Climate}, url={https://notendur.hi.is/thorstur/teaching/glac/sea_ice.pdf}, author={Thorstur}, year={2010}, month={Mar} } @misc{United Nations Environment Programme_2019, title={Global Linkages, a graphic look at the changing Arctic}, url={https://gridarendal-website-live.s3.amazonaws.com/production/documents/:s_document/465/original/GlobalLinkages-2.pdf?1553501023}, author={United Nations Environment Programme}, year={2019} }

Published 18-04-2019 23:40