Back to OLLI climate change homepage<\/a><\/p>\n My email contact is (copy\/paste) \u00a0pebelanger@glassdesignresources.com<\/strong><\/p>\n Earth self regulates 2.1 -2.3 Tim Lenton video \u2013 9 minute overview<\/p>\n Article Link: BBC Nature http:\/\/www.bbc.co.uk\/nature\/ancient_earth\/Snowball_Earth<\/a><\/p>\n You Tube: https:\/\/www.youtube.com\/results?search_query=snow+ball+earth<\/a><\/p>\n Google Snowball earth for other<\/p>\n <\/p>\n Climate change records are vital in understanding our climate; in the past, in the present and in the future. The Met Office has a useful\u00a0link<\/a> summary that you should read to develop your understanding. (http:\/\/www.metoffice.gov.uk\/climate-change\/guide\/science\/explained\/observations<\/a> )<\/p>\n Volcanic activity plays a major role in climate cooling. Find out more about how aerosols affect global temperatures. We recommend this link<\/a>\u00a0to NASA\u2019s Earth Observatory website. (http:\/\/earthobservatory.nasa.gov\/Features\/Aerosols\/<\/a> )<\/p>\n To answer help you to answer this question we recommend this\u00a0link<\/a>\u00a0to NASA\u2019s Earth Observatory website. (http:\/\/earthobservatory.nasa.gov\/Features\/GlobalWarming\/page3.php<\/a> )<\/p>\n To help you to answer this question we recommend this\u00a0link<\/a>\u00a0to NASA\u2019s Goddard Institute for Space Studies.<\/p>\n (http:\/\/www.giss.nasa.gov\/research\/briefs\/schmidt_01\/<\/a> )<\/p>\n This\u00a0link<\/a>\u00a0to the Science of Tree Rings website allows you to delve into more detail, discovering how trees have been used to reconstruct different climate variables across the world. It provides you with an understanding of the key principles of tree ring dating (including cross dating and replication). (http:\/\/web.utk.edu\/~grissino\/principles.htm#1<\/a> )<\/p>\n To help you to answer this question we recommend this\u00a0link<\/a>\u00a0to NASA\u2019s Earth Observatory. (http:\/\/www.earthobservatory.nasa.gov\/Features\/Paleoclimatology_IceCores\/<\/a> )<\/p>\n \u00a0SLIDES WEEK 2\u00a0Belanger OLLI week2 slides PowerPoint<\/a>\u00a0or in\u00a0PDF version<\/a><\/strong><\/p>\n #1\u00a09\/29\/2014 evening email:\u00a0week2 email 1 20140929<\/a><\/strong><\/p>\n Dr. Jeff Masters, Director of Meteorology, The Weather Underground, LLC;<\/strong> Earth’s Climate: Where are we at, and where are we headed (click here: PowerPoint-11Mb<\/a>\u00a0or PDF-4Mb<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":" Back to OLLI climate change homepage OLLI WEEK 2, September 23, 2014 Earth’s past climate history Welcome to the\u00a02nd\u00a0class Tuesday September 23rd\u00a09:30-11:30 My email contact is (copy\/paste) \u00a0pebelanger@glassdesignresources.com Earth\u2019s deep past before the Cambrian (600 MaBP): hot and cold Earth … Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1193,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/pages\/440"}],"collection":[{"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=440"}],"version-history":[{"count":20,"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/pages\/440\/revisions"}],"predecessor-version":[{"id":1196,"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/pages\/440\/revisions\/1196"}],"up":[{"embeddable":true,"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=\/wp\/v2\/pages\/1193"}],"wp:attachment":[{"href":"https:\/\/denverclimatestudygroup.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}OLLI WEEK 2, September 23, 2014<\/h2>\n
Earth’s past climate history<\/span><\/strong><\/h1>\n
Welcome to the\u00a02nd\u00a0class Tuesday September 23rd\u00a09:30-11:30<\/strong><\/h2>\n
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Earth\u2019s deep past before the Cambrian (600 MaBP): hot and cold<\/h2>\n<\/li>\n<\/ul>\n
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Earth\u2019s past: Cambrian onward: mostly hot-house Earth;\u00a0 100s parts per million (ppm)\u00a0A human induced climate-GSAtoday2012-02<\/a><\/h2>\n<\/li>\n
Climate trend in the Cenozoic \u2013 the last 65 million years; proxy data from 3600ppm to <200 ppm.<\/h2>\n<\/li>\n
More recent past: 180-280 part per million; how do we know \u2013 empirical data. Preview of next week\u2019s field trip<\/h2>\n<\/li>\n
Today: 400 ppm and growing 2-3ppm\/year<\/h2>\n<\/li>\n<\/ul>\n
\nRecommended link:<\/strong><\/span><\/h3>\n
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\nRecommended reading (2.5):<\/strong><\/span><\/h3>\n
What are climate change records?<\/h3>\n
How do volcanoes affect climate change?<\/h3>\n
How is today\u2019s warming different from the past?<\/h3>\n
What is the role of isotopes in determining temperatures from the past?<\/h3>\n
How have trees been used to reconstruct different climate variables across the world?<\/h3>\n
How can ice cores provide a record of atmospheric composition?<\/h3>\n
\nUPDATE EMAILS:<\/strong><\/h2>\n
\nArticles and PowerPoints \/PDFs thanks to Stan and Martin:<\/strong><\/h2>\n
Economist article Stan is sharing with us: first one a prelude to the other 2:<\/h3>\n
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