{"id":912,"date":"2017-06-07T14:11:44","date_gmt":"2017-06-07T13:11:44","guid":{"rendered":"http:\/\/blogs.reading.ac.uk\/the-forum\/?p=912"},"modified":"2017-06-07T14:11:44","modified_gmt":"2017-06-07T13:11:44","slug":"what-can-studying-past-climates-tell-us-about-climate-changes-happening-today","status":"publish","type":"post","link":"https:\/\/research.reading.ac.uk\/research-blog\/2017\/06\/07\/what-can-studying-past-climates-tell-us-about-climate-changes-happening-today\/","title":{"rendered":"What can studying past climates tell us about climate changes happening today?"},"content":{"rendered":"<p>By Professor Sandy Harrison<\/p>\n<p><a href=\"https:\/\/research.reading.ac.uk\/research-blog\/wp-content\/uploads\/sites\/72\/2017\/06\/Sandy-Harrison.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-914 size-thumbnail\" src=\"https:\/\/research.reading.ac.uk\/research-blog\/wp-content\/uploads\/sites\/72\/2017\/06\/Sandy-Harrison-150x150.jpg\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>I am delighted to be spearheading a forthcoming workshop to be held at Reading University in July that brings together observationalists and modellers working on palaeoclimates, model development and assessment of future climate changes to address this question.<\/p>\n<p>Climate models are mathematical representations of the interactions between the atmosphere, oceans, land surface, ice \u2013 and the sun. The models used for future climate projections were developed and calibrated using climate observations from the past 40 years. They are also the only tools available to project the human impact on the environment changes over the 21st century. These models perform well in terms of global features (e.g. magnitude of global warming), but model performance at a regional scale is poor.<\/p>\n<p><!--more--><\/p>\n<p>By researching past climates (paleoclimatology), studying the fossils of plants and animals preserved in lake or bog sediments, we can determine how ecosystems have changed over time. This has practical importance to our lives today and in the future.<\/p>\n<p>Records of the past tell us what the climate system can do. For example, if there have been shifts from grasslands to forests in Northern Africa in response to major shifts in rainfall , then similar shifts can happen again. Understanding the natural climate variability, those that come about without external factors such as human impact provide a baseline from which to assess the effects of these forced changes.<\/p>\n<p>Currently only very limited use has been made of the power of the palaeorecord to improve modelling capacity. In part, this is because there is a disconnect between the model-development and palaeoclimate communities. It also reflects the limited focus on evaluating earth-system components (as opposed to surface climate) by the palaeoclimate community.<\/p>\n<p>An important question we will be looking at in-depth at this milestone \u2018Past2Future workshop is whether the relationships developed from modern observations will be reliable when we move beyond our current range of climate models. The past holds the key here and we will be looking at the potential for palaeodata to be better integrated in model development, tuning and evaluation. Most significantly I hope this workshop will be the catalyst for the development of a new framework to improve Earth System Models.<\/p>\n<p>&#8211; The \u2018Past2Future workshop will be held 4-6th July 2017<\/p>\n<p>&#8211; <a href=\"http:\/\/www.reading.ac.uk\/s-p-harrison.aspx\">Sandy Harrison <\/a>is Professor in Global Palaeoclimates and Biogeochemical Cycles in the <a href=\"http:\/\/www.reading.ac.uk\/geographyandenvironmentalscience\/\">Department of Geography and Environmental Science<\/a>, University of Reading.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Professor Sandy Harrison I am delighted to be spearheading a forthcoming workshop to be held at Reading University in July that brings together observationalists and modellers working on palaeoclimates,&#8230;<a class=\"read-more\" href=\"&#104;&#116;&#116;&#112;&#115;&#58;&#47;&#47;&#114;&#101;&#115;&#101;&#97;&#114;&#99;&#104;&#46;&#114;&#101;&#97;&#100;&#105;&#110;&#103;&#46;&#97;&#99;&#46;&#117;&#107;&#47;&#114;&#101;&#115;&#101;&#97;&#114;&#99;&#104;&#45;&#98;&#108;&#111;&#103;&#47;&#50;&#48;&#49;&#55;&#47;&#48;&#54;&#47;&#48;&#55;&#47;&#119;&#104;&#97;&#116;&#45;&#99;&#97;&#110;&#45;&#115;&#116;&#117;&#100;&#121;&#105;&#110;&#103;&#45;&#112;&#97;&#115;&#116;&#45;&#99;&#108;&#105;&#109;&#97;&#116;&#101;&#115;&#45;&#116;&#101;&#108;&#108;&#45;&#117;&#115;&#45;&#97;&#98;&#111;&#117;&#116;&#45;&#99;&#108;&#105;&#109;&#97;&#116;&#101;&#45;&#99;&#104;&#97;&#110;&#103;&#101;&#115;&#45;&#104;&#97;&#112;&#112;&#101;&#110;&#105;&#110;&#103;&#45;&#116;&#111;&#100;&#97;&#121;&#47;\">Read More ><\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"__cvm_playback_settings":[],"__cvm_video_id":"","footnotes":""},"categories":[13],"tags":[191,323,654,798],"class_list":["post-912","post","type-post","status-publish","format-standard","hentry","category-environment","tag-climate-models","tag-environment-2","tag-paleoclimatology","tag-sandy-harrison"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What can studying past climates tell us about climate changes happening today? 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