{"id":64605,"date":"2026-04-16T17:11:59","date_gmt":"2026-04-16T07:11:59","guid":{"rendered":"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=64605"},"modified":"2026-04-16T17:11:59","modified_gmt":"2026-04-16T07:11:59","slug":"cooking-the-climate-data","status":"publish","type":"post","link":"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=64605","title":{"rendered":"Cooking the Climate Data"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-64606\" src=\"https:\/\/www.tomgrimshaw.com\/tomsblog\/wp-content\/uploads\/2026\/04\/Craig_Kelly.jpg\" alt=\"Craig Kelly\" width=\"522\" height=\"296\" srcset=\"https:\/\/www.tomgrimshaw.com\/tomsblog\/wp-content\/uploads\/2026\/04\/Craig_Kelly.jpg 522w, https:\/\/www.tomgrimshaw.com\/tomsblog\/wp-content\/uploads\/2026\/04\/Craig_Kelly-300x170.jpg 300w\" sizes=\"auto, (max-width: 522px) 100vw, 522px\" \/><\/p>\n<p>See that white louvered box? Since November 2017, Sydney\u2019s official temperatures have been recorded inside it at Observatory Hill. The screen is sited in what is the hottest available location at Observatory Hill, with heat reflecting from the adjacent old stone building and its tin roof only a few metres away directly to the south. BOM\u2019s own parallel data shows that this new site records temperatures up to 3\u00b0C warmer than the previous location.<\/p>\n<p>This has cooked Sydney\u2019s temperature record &#8211; yet this cooked data is used in a study claiming Sydney\u2019s summers are becoming longer.<\/p>\n<p><a href=\"https:\/\/x.com\/craigkellyAFEE\/status\/2044312732984586638?s=20\">https:\/\/x.com\/craigkellyAFEE\/status\/2044312732984586638?s=20<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>See that white louvered box? Since November 2017, Sydney\u2019s official temperatures have been recorded inside it at Observatory Hill. The screen is sited in what is the hottest available location at Observatory Hill, with heat reflecting from the adjacent old stone building and its tin roof only a few metres away directly to the south. &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.tomgrimshaw.com\/tomsblog\/?p=64605\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Cooking the Climate Data&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[132,5],"tags":[],"class_list":["post-64605","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-general-interest"],"_links":{"self":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/64605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=64605"}],"version-history":[{"count":1,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/64605\/revisions"}],"predecessor-version":[{"id":64607,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=\/wp\/v2\/posts\/64605\/revisions\/64607"}],"wp:attachment":[{"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=64605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=64605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tomgrimshaw.com\/tomsblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=64605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}