{"id":265867,"date":"2023-07-07T11:45:23","date_gmt":"2023-07-07T09:45:23","guid":{"rendered":"https:\/\/climatescience.press\/?p=265867"},"modified":"2023-07-07T11:45:26","modified_gmt":"2023-07-07T09:45:26","slug":"hottest-day-in-human-history-was-cooler-than-most-of-the-holocene","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=265867","title":{"rendered":"Hottest day \u201cin human history\u201d was cooler than most of the holocene"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

From JoNova<\/a><\/p>\n\n\n\n

By Jo Nova<\/strong><\/a><\/p>\n\n\n\n

The \u201chottest day\u201d is not that hot, and very irrelevant<\/h4>\n\n\n\n

So the news cycle went hyperbolic over a single dubious hot day in records that only go back 0.01% of human existence. Remember when \u201c30 year trends\u201d were all that mattered?<\/p>\n\n\n\n

Let\u2019s ignore for the moment that the error bars on measurements of global temperature in 1899 would make any normal scientist blush. Who believes for one minute even today we can measure the global surface temperature to one hundredth of a degree? The cringeworthy insignificant digits were everywhere.  On Monday the Earths surface was supposedly 17.01 degrees Celsius for the first time in \u201chuman history\u201d<\/a>. Then Tuesday it was 17.18C, Hallelujah.  Who are we kidding?<\/p>\n\n\n\n

Probably the biggest lie was to call this \u201chuman history\u201d as if the ancient Egyptians were measuring the temperature on Earth and every day of the week. Are we really sure we know what the temperature was on July 3, 2201 BC<\/em>? Maybe it was 17.31C that day \u2014 prove me wrong? We have no idea how hot the \u201chottest days\u201d were for 99% of human civilization. The best proxies we have can\u2019t tell us what the temperature was for 24 hour periods. We can\u2019t compare 20 year smoothed averages with a single 24 hour snapshot. Well, scientific prostitutes can, but not real scientists.<\/p>\n\n\n\n

If it was a record \u201chottest day\u201d, it might<\/em> have been the hottest day in the last 40 years (maybe, and if only we had good thermometers, didn\u2019t put them at airports<\/a>, near air conditioners<\/a> and incinerators<\/a>, didn\u2019t go electronic<\/a>, hide the calibration data<\/a>, and adjustify the records<\/a>, eh?). It\u2019s a big so-what.<\/p>\n\n\n\n

And in the end we know it there have been hotter years before in human civilization, and probably thousands of them.<\/em><\/p>\n\n\n\n

Who is trying to erase the Holocene<\/a>?<\/h3>\n\n\n\n

Don\u2019t they teach climate scientists anything anymore?  Karsten Haustein,<\/a> from the University of Leipzig was telling the BBC<\/a> that July will possibly be the hottest \u201csince the Eemian\u201d,  120,000 years ago, as if the Holocene optimum period didn\u2019t exist.<\/p>\n\n\n\n

A mere 5,000 years ago sea levels were higher, corals were happy, people thrived, and Greenland was a lot warmer. This was a global phenomenon \u2014 higher sea levels and some 6,000 boreholes <\/a>drilled around the world show the same pattern.<\/p>\n\n\n\n

It was hotter for thousands of years and CO2 was irrelevant. <\/mark><\/em><\/strong><\/p>\n\n\n\n

What the world needs are some real science journalists who can ask these badly trained junior modelers what happened to the Holocene?<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

This graph shows the ice-core data up until 1855. The last 150 years (1705 to 1855) are highlighted in red to show the warming as the Earth began coming out of the Little Ice Age.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Sea levels were higher all around the world<\/h3>\n\n\n\n

How could the oceans be higher all around the world if the world was not warmer?  Sea levels have been falling for the last 7,000 years around Australia,<\/a> they used to be nearly 1m higher in the South China Sea, South Africa and Polynesia <\/a>and it\u2019s a similar pattern around the world (thanks NoTricksZone)<\/a>. Studies on mangroves in Brazil show sea levels were about 2.7 meters higher in the mid-Holocene<\/a>, and mangroves grew 34 kilometers further inland.  (Fontes et al 2017). CO2 Science<\/a> lists references all over the world. I am barely skimming the surface.<\/p>\n\n\n\n

Other researchers estimate the waters flowing out of the Pacific Ocean past Indonesia were a full 2 degrees Celcius warmer 7,000 years ago<\/a>. (Rosenthal, (2013). Somehow corals did not go extinct, ancient viruses didn\u2019t wipe out the Sumerians, and humans spread across the Earth.<\/p>\n\n\n\n

Sea levels were higher off  the very geologically stable Western Australia 7,000 years ago. Across the other side of Australia in NSW sea levels were 1 \u2013 1.5m higher<\/a>.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Sea level has been falling for\u00a07,000 years<\/a>\u00a0in Western Australia\u00a0 (Lewis et al)<\/p>\n\n\n\n

<\/p>\n\n\n\n

A thousand stories of human pain and triumph from the last ten thousand years are being erased from the records. Australian Aboriginals apparently struggled through a 1,500 year mega drought<\/a> about 6,000 years ago (see McGowan et al 2012). And massive fires raged across far north Australia 4,000 years ago<\/a> that were far worse than today. (Rehn et al 2021).<\/p>\n\n\n\n

Another proxy suggesting the Holocene warmer temperatures were global is the heat flow data measured in\u00a06,000 boreholes across six continents down to about 2km<\/a>.\u00a0 Sometime from 5,000 to 10,000 years ago temperatures were hotter than they are now.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Location of boreholes for heat flow studies.<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

6,000 boreholes drilled around Earth show temperatures were hotter in the holocene.\u00a0Figure 1<\/strong>. Suite of reconstructions of surface temperature history over the last 20,000 years. Nine curves correspond to three values of thermal diffusivity. The reference level is the mean of the instrumental record from 1961-1990 AD. (Huang et al 2008)<\/p>\n\n\n\n

<\/p>\n\n\n\n

The hottest day in the last 150 years is irrelevant.<\/mark><\/em><\/strong><\/p>\n\n\n\n

<\/p>\n\n\n\n

REFERENCES<\/h4>\n\n\n\n

Fontes et al (2017) The Impacts of the Middle Holocene High Sea-Level Stand and Climatic Changes on Mangroves of the Jucuru\u00e7u River, Southern Bahia \u2013 Northeastern Brazil, Radiocarbon <\/a>, Volume 59 <\/a>, Issue 1 <\/a>, February 2017 , pp. 215 \u2013 230.  DOI: https:\/\/doi.org\/10.1017\/RDC.2017.6<\/a><\/p>\n\n\n\n

Huang, S. P., H. N. Pollack, and P.-Y. Shen (2008), A late Quaternary climate reconstruction based on borehole heat flux data, borehole temperature data, and the instrumental record, Geophys. Res. Lett., 35, L13703, doi:10.1029\/2008GL034187   [PDF<\/a>] Long blog discussion on boreholes.<\/a><\/p>\n\n\n\n

Lewis, S.E., et al., Post-glacial sea-level changes around the Australian margin: a review, Quaternary Science <\/em>Reviews<\/em> (2012), http:\/\/dx.doi.org\/10.1016\/j.quascirev.2012.09.006<\/a> [abstract] <\/a><\/p>\n\n\n\n

Hamish McGowan,Samuel Marx, Patrick Moss, Andrew Hammond (2012): Evidence of ENSO mega-drought triggered collapse of prehistory Aboriginal society in northwest Australia, Geophysical Research Letters, Vol 39, Issue 22.  DOI: 10.1029\/2012GL053916 [Abstract<\/a>]<\/p>\n\n\n\n

Rehn, E. et al (2021) A late-Holocene multiproxy fire record from a tropical savanna, eastern Arnhem Land, Northern Territory, Australia [PDF]<\/p>\n\n\n\n

Rosenthal, Y., Braddock K. Linsley, Delia W. Oppo (2013) Pacific Ocean Heat Content During the Past 10,000 Years, Science<\/em> 1 November,Vol. 342 no. 6158 pp. 617-621  DOI: 10.1126\/science.1240837 [Sciencemag.org ]<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

The \u201chottest day\u201d is not that hot, and very irrelevant<\/p>\n","protected":false},"author":121246920,"featured_media":265878,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[691818389,691818192,691820856,691820858,691820857],"class_list":{"0":"post-265867","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-uncategorized","8":"tag-bbc","9":"tag-holocene","10":"tag-hottest-day","11":"tag-karsten-haustein","12":"tag-university-of-leipzig","14":"fallback-thumbnail"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-173.png?fit=1600%2C947&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-17ab","jetpack-related-posts":[{"id":267114,"url":"https:\/\/climatescience.press\/?p=267114","url_meta":{"origin":265867,"position":0},"title":"Surviving the hottest ever propaganda by showing the total picture","author":"uwe.roland.gross","date":"13\/07\/2023","format":false,"excerpt":"This is meteo-misinformation media using\u00a0 Marxist tactics of deception, distortion, and delusion to push their agenda where weather and climate is a tool for the destruction of our way of life.","rel":"","context":"In \"CO2\"","block_context":{"text":"CO2","link":"https:\/\/climatescience.press\/?tag=co2"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-374.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-374.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-374.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-374.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-374.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":282624,"url":"https:\/\/climatescience.press\/?p=282624","url_meta":{"origin":265867,"position":1},"title":"Hottest Ever September \u2014 just more headline clickbait for heat loving mammals that live across a 90 degree range","author":"uwe.roland.gross","date":"09\/10\/2023","format":false,"excerpt":"From JoNova By Jo Nova Humans live in a 90 degree range from Marble Bar, Australia to Oymyakon, Siberia. | Photos: Marble Bar,\u00a0Wilford Peloquin, Oymyakon (and\u00a0more glorious ones) by\u00a0Amos Chapple. The \u201chottest ever\u201d headline is misleading While the UAH satellite measurements are the\u00a0hottest by far of the 44 year satellite\u2026","rel":"","context":"In \"coldest place\"","block_context":{"text":"coldest place","link":"https:\/\/climatescience.press\/?tag=coldest-place"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/10\/0videoblocks-group-of-happy-friends-running-in-to-water-at-sunset-silhouettes-of-active-people-having-fun-on-the-beach-on-vacation_humzot_sx_thumbnail-1080_01.png?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/10\/0videoblocks-group-of-happy-friends-running-in-to-water-at-sunset-silhouettes-of-active-people-having-fun-on-the-beach-on-vacation_humzot_sx_thumbnail-1080_01.png?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/10\/0videoblocks-group-of-happy-friends-running-in-to-water-at-sunset-silhouettes-of-active-people-having-fun-on-the-beach-on-vacation_humzot_sx_thumbnail-1080_01.png?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/10\/0videoblocks-group-of-happy-friends-running-in-to-water-at-sunset-silhouettes-of-active-people-having-fun-on-the-beach-on-vacation_humzot_sx_thumbnail-1080_01.png?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/10\/0videoblocks-group-of-happy-friends-running-in-to-water-at-sunset-silhouettes-of-active-people-having-fun-on-the-beach-on-vacation_humzot_sx_thumbnail-1080_01.png?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":293487,"url":"https:\/\/climatescience.press\/?p=293487","url_meta":{"origin":265867,"position":2},"title":"Fastest, hottest rate of warming for \u201cmillions of years\u201d","author":"uwe.roland.gross","date":"02\/01\/2024","format":false,"excerpt":"It\u2019s just another day in the hottest ever hyperbole race. The most unprecedentedly unprecedented record where more scientists on Earth than ever before, forget more of the\u00a0 Pleistocene than they ever have in history.","rel":"","context":"In \"Climate change\"","block_context":{"text":"Climate change","link":"https:\/\/climatescience.press\/?tag=climate-change"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/06a8fa7cd9805c0431249d5dea27bd5a7.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/06a8fa7cd9805c0431249d5dea27bd5a7.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/06a8fa7cd9805c0431249d5dea27bd5a7.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/06a8fa7cd9805c0431249d5dea27bd5a7.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/06a8fa7cd9805c0431249d5dea27bd5a7.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":266850,"url":"https:\/\/climatescience.press\/?p=266850","url_meta":{"origin":265867,"position":3},"title":"Earth Experiencing \u2018Hottest Day Ever\u2019 Is a Deliberate Lie","author":"uwe.roland.gross","date":"11\/07\/2023","format":false,"excerpt":"The establishment media are reporting that the world this past week recorded its hottest day ever. 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The warming-compliant media picked up the \u201chottest ever\u201d line and ran with it.","rel":"","context":"In \"computer modelling\"","block_context":{"text":"computer modelling","link":"https:\/\/climatescience.press\/?tag=computer-modelling"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-395.png?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-395.png?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-395.png?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/07\/image-395.png?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":337503,"url":"https:\/\/climatescience.press\/?p=337503","url_meta":{"origin":265867,"position":5},"title":"Sunday was 0.01 degree hotter than last year, and 1 or 2 degrees cooler than what cavemen lived through. 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