{"id":548418,"date":"2010-04-30T16:33:35","date_gmt":"2010-04-30T20:33:35","guid":{"rendered":"http:\/\/www.earthportal.org\/news\/?p=3322"},"modified":"2010-07-19T20:27:40","modified_gmt":"2010-07-20T00:27:40","slug":"new-predictions-for-sea-level-rise","status":"publish","type":"post","link":"https:\/\/mereja.media\/index\/548418","title":{"rendered":"New predictions for sea level rise"},"content":{"rendered":"<p><a href=\"http:\/\/www.sciencedaily.com\/releases\/2009\/07\/090727091838.htm\" >Science Daily: <\/a>Fossil coral data and temperature records derived from ice-core  measurements have been used to place better constraints on future sea  level rise, and to test sea level projections.<\/p>\n<p><a href=\"http:\/\/www.sciencedaily.com\/releases\/2009\/07\/090727091838.htm\" ><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/commons\/8\/8b\/Vina_del_mar_beach.jpg\" align=\"left\" width=\"154\" height=\"115\" \/><\/a>The results are published in <em>Nature Geoscience<\/em> and predict  that the amount of sea level rise by the end of this century will be  between 7- 82 cm \u2013 depending on the amount of warming that occurs \u2013 a  figure similar to that projected by the IPCC report of 2007.<\/p>\n<p>Placing limits on the amount of sea level rise over the next century  is one of the most pressing challenges for climate scientists. The  uncertainties around different methods to achieve accurate predictions  are highly contentious because the response of the Greenland and  Antarctic ice sheets to warming is not well understood.<\/p>\n<p>Dr Mark Siddall from the University of Bristol, together with  colleagues from Switzerland and the US, used fossil coral data and  temperature records derived from ice-core measurements to reconstruct  sea level fluctuations in response to changing climate for the past  22,000 years, a period that covers the transition from glacial maximum  to the warm Holocene interglacial period.<\/p>\n<p>By considering how sea level has responded to temperature since the  end of the last glacial period, Siddall and colleagues predict that the  amount of sea level rise by the end of this century will be similar to  that projected by the Fourth Assessment Report of the Intergovernmental  Panel on Climate Change (IPCC).<\/p>\n<p>Dr Siddall said: &#8220;Given that the two approaches are entirely  independent of each other, this result strengthens the confidence with  which one may interpret the IPCC results. It is of vital importance that  this semi-empirical result, based on a wealth of data from fossil  corals, converges so closely with the IPCC estimates.<\/p>\n<p>&#8220;Furthermore, as the time constant of the sea level response is 2,900  years, our model indicates that the impact of twentieth-century warming  on sea level will continue for many centuries into the future. It will  therefore constitute an important component of climate change in the  future.&#8221;<\/p>\n<p>The IPCC used sophisticated climate models to carry out their  analysis, whereas Siddall and colleagues used a simple, conceptual model  which is trained to match the sea level changes that have occurred  since the end of the last ice age.<\/p>\n<p><a href=\"http:\/\/www.sciencedaily.com\/releases\/2009\/07\/090727091838.htm\" >Read more&gt;&gt;<\/a><\/p>\n<p class=\"akst_link\"><a href=\"http:\/\/www.earthportal.org\/news\/?p=3322&amp;akst_action=share-this\"  title=\"E-mail this, post to del.icio.us, etc.\" id=\"akst_link_3322\" class=\"akst_share_link\" rel=\"nofollow\">Share This<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Science Daily: Fossil coral data and temperature records derived from ice-core measurements have been used to place better constraints on future sea level rise, and to test sea level projections. The results are published in Nature Geoscience and predict that the amount of sea level rise by the end of this century will be between [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-548418","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/548418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=548418"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/548418\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=548418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=548418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=548418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}