{"id":43149,"date":"2014-11-02T21:30:42","date_gmt":"2014-11-03T02:30:42","guid":{"rendered":"http:\/\/planetsave.com\/?p=43149"},"modified":"2014-11-06T16:56:47","modified_gmt":"2014-11-06T21:56:47","slug":"michael-mann-views-sundays-ipcc-synthesis-report","status":"publish","type":"post","link":"https:\/\/planetsave.com\/articles\/michael-mann-views-sundays-ipcc-synthesis-report\/","title":{"rendered":"How Michael Mann Views Sunday’s IPCC Synthesis Report"},"content":{"rendered":"

Michael Mann, originator of the hockey stick graph that shook world science in the 2001 IPCC Third Assessment Report <\/em>and contributed to the 2007 Nobel Peace Prize,\u00a0posted some thoughts today about the final IPCC climate synthesis report<\/a>\u00a0released by the UN on Sunday.<\/p>\n

Mann\u2019s take on the key points<\/a>\u00a0of the report, which calls for zero\u00a0fossil fuel emissions\u00a0by 2100:<\/p>\n

\"Dr.<\/a>\u201cThe world\u2019s scientists are more confident than ever that climate change is not only real and caused by us, but that it is already taking a toll: on our health, on our economy, on our security, and on the health of our environment. The good news is that it it still possible to solve the problem cheaply. But if we delay acting, it will be far more expensive, and the damages will be far greater.\u201d<\/p><\/blockquote>\n

He finds this latest IPCC synthesis report more definitive than the past reports in terms of its tone of certainty. He hears in it a higher level of confidence that human activity (fossil fuel burning) is responsible for warming. \u201cThe report is far more definitive that climate change isn\u2019t some nebulous, far-off threat\u2014it is negatively impacting us already, where we live.\u201d He cites the influence of climate change in the US, such as increasing impacts of extreme droughts, floods, and massive wildfires.<\/p>\n

What\u2019s missing? Mann feels that the potential threat of low-probability\u2014but potentially catastrophic\u2014events gets short shrift in the new IPCC synthesis report. The potential damages associated with such events makes connsideration of them critical in any assessment of climate change risk. For example, Mann says:<\/p>\n

\u201cThere is an emerging body of evidence in the peer-reviewed literature, for example, that we may have already crossed a tipping point in ice sheet behavior that commits us to more than 10 feet of sea level rise. There is quite a bit of uncertainty about the timescale on which this will unfold, but timescales as short as a century or two cannot confidently be ruled out.\u201d<\/p><\/blockquote>\n

He also cites a body of evidence emerging in the peer-reviewed scientific literature that extreme events like the current wicked California drought might be associated with the northern hemisphere\u2019s jet stream response to disappearing Arctic sea ice. \u201cIf so,\u201d Mann says, \u201cthis would imply that climate change is already taking an even greater toll than the IPCC assessments imply.\u201d<\/p>\n

The urgency of today\u2019s IPCC synthesis report findings\u00a0should translate to a heightened sense of urgency at the upcoming negotiations in Lima (December 2014) and Paris (December 2015). \u201cA sober reading of the synthesis report makes clear that we need to act now if we are to avert potentially catastrophic impacts of climate change on us and our planet.\u201d<\/p>\n

For more on the Synthesis Report itself, visit:<\/em><\/p>\n

Climate Change Now, Fossil Fuels Must Go By 2100<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Michael Mann, originator of the hockey stick graph that shook world science in the 2001 IPCC Third Assessment Report and contributed to the 2007 Nobel Peace Prize,\u00a0posted some thoughts today about the final IPCC climate synthesis report\u00a0released by the UN on Sunday. Mann\u2019s take on the key points\u00a0of the report, which calls for zero\u00a0fossil fuel 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Mann\u2019s take on the key points\u00a0of the report, which calls for zero\u00a0fossil fuel…","_links":{"self":[{"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/posts\/43149"}],"collection":[{"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/users\/135"}],"replies":[{"embeddable":true,"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/comments?post=43149"}],"version-history":[{"count":0,"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/posts\/43149\/revisions"}],"wp:attachment":[{"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/media?parent=43149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/categories?post=43149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetsave.com\/wp-json\/wp\/v2\/tags?post=43149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}