<?xml version="1.0" encoding="UTF-8" standalone="yes"?><oembed><version><![CDATA[1.0]]></version><provider_name><![CDATA[Azimuth]]></provider_name><provider_url><![CDATA[https://johncarlosbaez.wordpress.com]]></provider_url><author_name><![CDATA[John Baez]]></author_name><author_url><![CDATA[https://johncarlosbaez.wordpress.com/author/johncarlosbaez/]]></author_url><title><![CDATA[What Is Climate Change and What To Do About&nbsp;It?]]></title><type><![CDATA[link]]></type><html><![CDATA[<p>Soon I&#8217;m going to a workshop on <a href="http://www.balsillieschool.ca/event/workshop-what-climate-change#.UlwZ8RAlOjU">Interdisciplinary Perspectives on Climate Change</a> at the Balsillie School of International Affairs, or BSIA, in Waterloo, Canada.   It&#8217;s organized by <a href="http://www.cigionline.org/person/simon-dalby">Simon Dalby,</a> who has a chair in the political economy of climate change at this school. </p>
<p>The plan is to gather people from many different disciplines to provide views on two questions: what is climate change, and what to do about it?</p>
<p>We&#8217;re giving really short talks, leaving time for discussion.  But before I get there I need to write a 2000-word paper on my view of climate change&#8212;&#8216;as a mathematician&#8217;, supposedly.  That&#8217;s where I want your help.  I think I know <i>roughly</i> what I want to say, and I&#8217;ll post some drafts here as soon as I write them.  But I&#8217;d like get your ideas, too.  </p>
<p>For starters, the program looks like this:</p>
<h4>Friday 25 October: What is Climate Change?</h4>
<p><b>9:00 – 9:30  Introductory remarks</b><br />
<a href="http://www.balsillieschool.ca/people/john-ravenhill">John Ravenhill</a>, Director, BSIA<br />
<a href="http://parca.uwaterloo.ca/team/principal-investigators/daniel-scott/">Dan Scott</a>, University of Waterloo, Interdiscipinary Centre for Climate Change.<br />
<a href="http://www.cigionline.org/person/simon-dalby">Simon Dalby</a>, BSIA</p>
<p><b>9:30 – 10:45 Presentation Session 1</b><br />
Chair: <a href="http://www.balsillieschool.ca/people/sara-koopman">Sara Koopman</a>, BSIA<br />
<a href="http://math.ucr.edu/home/baez/">John Baez</a>, University of California (Mathematics)<br />
<a href="https://uwaterloo.ca/geography-environmental-management/people-profiles/jean-andrey">Jean Andrey</a>, University of Waterloo (Geography)<br />
<a href="http://web.wlu.ca/philosophy/index.php?staff=bwilliston&amp;page=home">Byron Williston</a>, Wilfrid Laurier University (Philosophy)</p>
<p><b>11:15 – 12:30 Presentation Session 2</b><br />
Chair: <a href="http://www.balsillieschool.ca/people/marisa-beck">Marisa Beck</a>, BSIA<br />
<a href="http://www1.carleton.ca/communication/people/russill-chris">Chris Russill</a>, Carleton University (Communications)<br />
<a href="http://www.mikehulme.org/">Mike Hulme</a>, Kings’ College London (Climate Science)<br />
<a href="http://politicalscience.uwo.ca/people/faculty/full-time_faculty/radoslav_dimitrov.html">Radoslav Dimitrov</a>, Western University (Political Science)</p>
<p><b>1:30 – 2:30 Presentation Session 3</b><br />
Chair: <a href="http://foodpolitics.uwaterloo.ca/matthew-gaudreau/">Matt Gaudreau</a>, BSIA<br />
<a href="https://wise.uwaterloo.ca/.profile/nathwani">Jatin Nathwani</a>, University of Waterloo (Engineering)<br />
<a href="http://www.eci.ox.ac.uk/people/burchsarah.php">Sarah Burch</a>, University of Waterloo (New Social Media and Education)</p>
<p><b>3:00 &#8211; 5:00 Roundtable 1 (all presenters)</b><br />
Chair: <a href="http://www.balsillieschool.ca/people/lucie-edwards">Lucie Edwards</a>, BSIA<br />
Discussant: <a href="https://uwaterloo.ca/knowledge-integration/people-profiles/vanessa-schweizer">Vanessa Schweizer</a>, University of Waterloo</p>
<p><b>5:00 – 5:15 Wrap-up</b><br />
<a href="http://parca.uwaterloo.ca/team/principal-investigators/daniel-scott/">Dan Scott</a> and <a href="http://www.cigionline.org/person/simon-dalby">Simon Dalby</a></p>
<h4>Saturday 26 October: What Should We Do About It?</h4>
<p><b>9:00 – 10:15 Presentation Session 4</b><br />
Chair: <a href="http://foodpolitics.uwaterloo.ca/matthew-gaudreau/">Matt Gaudreau</a>, BSIA<br />
<a href="http://politicalscience.uwo.ca/people/faculty/full-time_faculty/radoslav_dimitrov.html">Radoslav Dimitrov</a>, Western University (Political Science)<br />
<a href="http://www.mikehulme.org/">Mike Hulme</a>, Kings’ College London (Climate Science)<br />
<a href="https://uwaterloo.ca/geography-environmental-management/people-profiles/jean-andrey">Jean Andrey</a>, University of Waterloo (Geography)</p>
<p><b>10:45 – 12:00 Presentation Session 5</b><br />
Chair: <a href="http://www.balsillieschool.ca/people/lucie-edwards">Lucie Edwards</a>, BSIA<br />
<a href="https://wise.uwaterloo.ca/.profile/nathwani">Jatin Nathwani</a>, University of Waterloo (Engineering)<br />
<a href="https://uwaterloo.ca/geography-environmental-management/people-profiles/sarah-burch">Sarah Burch</a>, University of Waterloo (Environmental Education)<br />
<a href="http://www1.carleton.ca/communication/people/russill-chris">Chris Russill</a>, Carleton University (Communications)</p>
<p><b>1:00 – 2:00 Presentation Session 6</b><br />
Chair: <a href="http://www.balsillieschool.ca/people/marisa-beck">Marisa Beck</a>, BSIA<br />
<a href="http://web.wlu.ca/philosophy/index.php?staff=bwilliston&amp;page=home">Byron Williston</a>, Wilfrid Laurier University (Philosophy)<br />
<a href="http://math.ucr.edu/home/baez/">John Baez</a>, University of California (Mathematics)</p>
<p><b>2:30 – 4:30 Roundtable 2 (all presenters)</b><br />
Chair: <a href="http://www.balsillieschool.ca/people/sara-koopman">Sara Koopman</a>, BSIA<br />
Discussant: <a href="http://www.cigionline.org/person/james-orbinski">James Orbinski</a>, CIGI Chair in Global Health</p>
<p><b>4:30 – 5:00 Wrap-up</b><br />
<a href="http://parca.uwaterloo.ca/team/principal-investigators/daniel-scott/">Dan Scott</a> and <a href="http://www.cigionline.org/person/simon-dalby">Simon Dalby</a></p>
<h3> Some thoughts </h3>
<p>Though I&#8217;m playing a designated role in this workshop&#8212;the &#8220;mathematician&#8221;&#8212;I don&#8217;t think it makes sense to focus on mathematical models of climate change, or the math projects I&#8217;m working on now.  </p>
<p>I will probably seem strange and &#8220;mathematical&#8221; enough just saying what I think about climate change!  Most of the other people come from fields quite different than mine: they seem much more in tune with the nitty-gritty details of politics and economics.   So, perhaps my proper role is to mention some facts and numbers that they probably know already, to remind them of the magnitude, scope and urgency of the problem.</p>
<p>It may also be useful to emphasize that with very high probability, <i>we won&#8217;t do enough soon enough</i>, so we need to study a series of fallback positions, not just an &#8216;optimal&#8217; response to climate change.  And these fallback positions should go as far as thinking about what happens if we burn all the available carbon.  What to do then?</p>
<p>When I talked about this workshop with the mathematician Sasha Beilinson, he wickedly suggested that the best solution to global warming might be a global economic collapse&#8230; and he asked if anyone was looking into this.  </p>
<p>Of course this solution comes along with huge problems, and anyone who actually advocates it is branded as a nut and excluded from the &#8216;serious&#8217; discourse on global warming.   But the funny thing is, a global economic collapse could be just as <i>probable</i> as some more optimistic scenarios, for example those that require a massive outbreak of altruism worldwide.   </p>
<p>So it&#8217;s worth thinking about economic collapse scenarios, and &#8216;burn carbon until there&#8217;s none left&#8217; scenarios, even if we don&#8217;t want them.  And these are the sort of things that only the mathematician in the room may be brave&#8212;or foolish&#8212;enough to mention.  </p>
<p>What else?</p>
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