{"id":224,"date":"2012-10-22T18:12:16","date_gmt":"2012-10-22T18:12:16","guid":{"rendered":"http:\/\/blogs.dickinson.edu\/arnoldt\/?p=224"},"modified":"2012-10-26T13:19:58","modified_gmt":"2012-10-26T13:19:58","slug":"carbon-dioxide-makes-us-and-fish-dumb","status":"publish","type":"post","link":"https:\/\/blogs.dickinson.edu\/arnoldt\/2012\/10\/22\/carbon-dioxide-makes-us-and-fish-dumb\/","title":{"rendered":"Carbon dioxide makes us (and fish) dumb"},"content":{"rendered":"<div>Here&#8217;s an interesting recent study showing the hidden impact of high carbon dioxide levels, this time in office buildings and schools, on cognitive function.\u00a0<\/div>\n<div><strong><\/strong>\u00a0<\/div>\n<div><strong>Elevated carbon dioxide may impair reasoning: <\/strong>Insufficient ventilation allows exhaled gas to build up indoors, diminishing decision-making abilities.\u00a0 According the Janet Raloff at ScienceNews: &#8220;The work assessed decision-making in 22 healthy young adults. Their performance on six of nine tests dropped notably when researchers raised indoor carbon dioxide levels to 1,000 parts per million from a baseline of 600 ppm. On seven tests, performance fell substantially more when the room\u2019s CO<sub>2<\/sub> was boosted to 2,500 ppm, scientists report in a paper to be published in <em>Environmental Health Perspectives<\/em>.<\/div>\n<p>I use CO2 monitoring equipment with my students regularly and we observe carbon dioxide levels rising substantially when students enter a class, routinely exceeding 1000 ppm.\u00a0 Perhaps, this is another reason students learn better in small classes (in big, well ventilated rooms).\u00a0\u00a0<\/p>\n<p>Sounds familiar?\u00a0 It might if you&#8217;d read this study by Paola Domenici et al (2011) in Biology Letters:<\/p>\n<p><a href=\"http:\/\/rsbl.royalsocietypublishing.org\/content\/8\/1\/78\">http:\/\/rsbl.royalsocietypublishing.org\/content\/8\/1\/78<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here&#8217;s an interesting recent study showing the hidden impact of high carbon dioxide levels, this time in office buildings and schools, on cognitive function.\u00a0 \u00a0 Elevated carbon dioxide&#8230;<\/p>\n","protected":false},"author":1263,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-224","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/posts\/224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/users\/1263"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/comments?post=224"}],"version-history":[{"count":0,"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/posts\/224\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/media?parent=224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/categories?post=224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.dickinson.edu\/arnoldt\/wp-json\/wp\/v2\/tags?post=224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}