{"id":49929,"date":"2018-09-19T10:59:26","date_gmt":"2018-09-19T14:59:26","guid":{"rendered":"https:\/\/newsroom.carleton.ca\/?p=49929"},"modified":"2025-08-19T09:36:42","modified_gmt":"2025-08-19T13:36:42","slug":"science-cafe-lessons-from-earths-geological-history-for-modern-climate-change","status":"publish","type":"post","link":"https:\/\/carleton.ca\/news\/2018\/science-cafe-lessons-from-earths-geological-history-for-modern-climate-change\/","title":{"rendered":"Science Caf\u00e9 \u2013 Lessons from Earth\u2019s Geological History for Modern Climate Change"},"content":{"rendered":"\n
\n
\n\n
\n
\n
\n

\n Science Caf\u00e9 \u2013 Lessons from Earth\u2019s Geological History for Modern Climate Change\n <\/h1>\n \n \n <\/header>\n\n <\/div>\n\n <\/div>\n\n <\/div>\n<\/section>\n\n

As part of 杏吧原创 University\u2019s Science Caf\u00e9<\/a> series, Richard Ernst of the Department of Earth Sciences<\/a> will present Lessons from Earth\u2019s Geological History for Modern Climate Change.<\/em><\/p>\n\n\n\n

When<\/strong>:<\/em> Wednesday, Sept. 26, 2018, at 6:30 p.m.
\nWhere<\/strong>: Sunnyside Branch of the Ottawa Public Library, 1049 Bank Street, Ottawa
\nInfo<\/strong>: This event is free and open to the public.<\/p>\n\n\n\n

Media are invited to attend the event.<\/strong><\/p>\n\n\n\n

Earth\u2019s history is characterized by dramatic climate changes, including global warming, global cooling, anoxia (low oxygen in the ocean), the stepwise build of Earth\u2019s oxygen level, acid rain, ocean acidification and mercury poisoning. In some cases, environmental changes were severe enough to cause mass extinctions.  The majority of these extinctions are linked to giant volcanic events and meteorite impact.  Climatic shifts can also be due to a variety of factors, including changes in planetary surface brightness, plate tectonics, mountain building and biological evolution.<\/p>\n\n\n\n

Climate change can be studied on other planets. Venus had runaway greenhouse effects due to massive volcanism. The resulting carbon dioxide release increased global surface temperatures to 450 degrees Celsius. On Earth, the weathering of mafic and ultramafic rocks acts as a powerful sink for atmospheric carbon dioxide \u2013 suggesting a role for modern carbon sequestration efforts.<\/p>\n\n\n\n

The lesson from Earth\u2019s geological history is that our climate is continually changing \u2013 sometimes dramatically, with potentially catastrophic effects on life \u2013 and the risk to humanity is real.<\/p>\n\n\n\n

杏吧原创 Science Caf\u00e9<\/h3>\n\n\n\n

The Science Caf\u00e9 series is organized by the Faculty of Science<\/a> at 杏吧原创 University to discuss relevant issues facing our society and how science can help solve real-world problems. Meet some of our award-winning faculty members and graduate students as they share their excitement about science with the community. For more information, visit:  Science.carleton.ca\/science-cafe<\/a><\/p>\n\n\n\n

 <\/p>\n\n\n\n

Media Contact
\n<\/strong>Steven Reid
\nMedia Relations Officer
\n杏吧原创 University
\n613-520-2600, ext. 8718
\n613-265-6613
\nSteven_Reid3@杏吧原创.ca<\/a><\/p>\n\n\n\n

杏吧原创 Flipboard account: <\/strong>https:\/\/flipboard.com\/@carletonstories\/carleton-stories-0gbu905my<\/a>
\nFollow us on Twitter: <\/strong>www.twitter.com\/Cunewsroom<\/a>
\nNeed an expert?<\/strong> Go to:<\/strong> www.carleton.ca\/newsroom\/experts<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

As part of 杏吧原创 University\u2019s Science Caf\u00e9 series, Richard Ernst of the Department of Earth Sciences will present Lessons from Earth\u2019s Geological History for Modern Climate Change. When: Wednesday, Sept. 26, 2018, at 6:30 p.m. Where: Sunnyside Branch of the Ottawa Public Library, 1049 Bank Street, Ottawa Info: This event is free and open to the […]<\/p>\n","protected":false},"author":410,"featured_media":6888,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[98],"tags":[120,104],"class_list":["post-49929","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-media-advisories","tag-earth-sciences","tag-science"],"acf":{"cu_post_thumbnail":false},"_links":{"self":[{"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/posts\/49929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/users\/410"}],"replies":[{"embeddable":true,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/comments?post=49929"}],"version-history":[{"count":3,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/posts\/49929\/revisions"}],"predecessor-version":[{"id":63827,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/posts\/49929\/revisions\/63827"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/media\/6888"}],"wp:attachment":[{"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/media?parent=49929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/categories?post=49929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/carleton.ca\/news\/wp-json\/wp\/v2\/tags?post=49929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}