{"id":577072,"date":"2010-05-24T23:06:28","date_gmt":"2010-05-25T03:06:28","guid":{"rendered":"http:\/\/climaterealists.com\/index.php?id=5766"},"modified":"2010-05-24T23:06:28","modified_gmt":"2010-05-25T03:06:28","slug":"tree-rings-chainsaws-at-dawn-by-holly-williams","status":"publish","type":"post","link":"https:\/\/mereja.media\/index\/577072","title":{"rendered":"Tree rings: Chainsaws at dawn by Holly Williams"},"content":{"rendered":"

Article Tags: TreeGate<\/a><\/p>\n

Tree rings were thought to prove global warming \u2013 now climate-change deniers say they show the reverse. Both views are flawed<\/em><\/strong><\/p>\n

As every amateur naturalist knows, trees provide a record of their own history, in the pattern of rings seen in a horizontal cross-section. Trees growing at the same time will show similar patterns, and each year is distinctive enough to allow those who study tree rings \u2013 dendrochronologists \u2013 to date the rings, establishing chronologies stretching back thousands of years.<\/p>\n

But trees tell us more than just when they were growing \u2013 they also reveal what the climate was like. Rings are formed as the tree grows, adding layers of new wood beneath its bark. How thick that layer \u2013 and how wide the resultant ring \u2013 depends on various factors, but most importantly the climate. A warm, wet summer will result in a wide ring; a cold summer or drought will produce a narrow ring. <\/p>\n

Trees can therefore function as archives, invaluable sources of information for climatologists \u2013 and for those attempting to prove or disprove climate change. <\/p>\n

And that’s where it gets controversial. It turns out not all trees hold a reliable record of temperature. But as temperature-related data is hot property in the climate change debate, scientists who suggest that some tree data may not be helpful risk being accused of hiding important findings.<\/p>\n

Last month, Queen’s University Belfast was ordered by the UK Information Commissioner’s Office to hand over data from 40 years of research into Irish tree rings to Doug Keenan. A City banker turned climate analyst \u2013 and climate change denier \u2013 Keenan believes the Irish tree-rings could provide evidence that there was a “medieval warm period” 1,000 years ago. If this were true, it would disrupt the notion that warming during the 20th century is unique and man-made.
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\nSource: independent.co.uk<\/p>\n

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Article Tags: TreeGate Tree rings were thought to prove global warming \u2013 now climate-change deniers say they show the reverse. Both views are flawed As every amateur naturalist knows, trees provide a record of their own history, in the pattern of rings seen in a horizontal cross-section. Trees growing at the same time will show […]<\/p>\n","protected":false},"author":7070,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-577072","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/577072","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\/7070"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=577072"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/577072\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=577072"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=577072"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=577072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}