{"id":421181,"date":"2026-01-13T10:03:07","date_gmt":"2026-01-13T09:03:07","guid":{"rendered":"https:\/\/climatescience.press\/?p=421181"},"modified":"2026-01-13T10:03:09","modified_gmt":"2026-01-13T09:03:09","slug":"new-study-greenland-was-3-7c-warmer-and-far-less-glaciated-than-today-6000-8000-years-ago","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=421181","title":{"rendered":"New Study: Greenland Was 3-7\u00b0C Warmer and Far Less Glaciated Than Today 6000-8000 Years Ago"},"content":{"rendered":"\n
\"A<\/figure>\n\n\n\n

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

From No Trick Zone <\/a><\/p>\n\n\n\n

By Kenneth Richard<\/a><\/em><\/p>\n\n\n

\n
\"A<\/figure>\n<\/div>\n\n\n

A large portion of the Greenland ice sheet that is today over 500 m thick did not exist during the Early to Mid Holocene.<\/strong><\/h4>\n\n\n\n

Prudhoe Dome (PD), a 2500 km\u00b2 section of northwestern Greenland\u2019s ice sheet (GIS), is today 500 to 600 m thick (Walcott-George et al., 2026<\/a><\/strong>).<\/p>\n\n\n\n

Approximately 6000-8000 years ago, or when atmospheric CO2 was alleged to be ~260 ppm, PD had deglaciated completely, exposing the soil to sunlight.<\/p>\n\n\n\n

The primary mechanism for the PD deglaciation was the estimated 3-7\u00b0C warmer-than-present regional temperatures. This warming and the consequent ice cap minima was said to be  \u201cArctic-wide\u201d.<\/p>\n\n\n\n

Starting ~4000 years ago the GIS gradually began thickening until it recently reached its modern glaciated state, with glaciation peaking in the 1800s.<\/p>\n\n\n

\n
\"Scientific
Image Source: Walcott-George et al., 2026<\/a><\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n

\n
\"Aerial<\/figure>\n<\/div>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Approximately 6000-8000 years ago, or when atmospheric CO2 was alleged to be ~260 ppm, PD had deglaciated completely, exposing the soil to sunlight.<\/p>\n","protected":false},"author":121246920,"featured_media":421189,"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":"Learn how Greenland's ice sheet was much thinner 6000-8000 years ago, with temperatures 3-7\u00b0C warmer than today, uncovering its historical climate.","jetpack_seo_html_title":"Greenland's Ice Ages: 3-7\u00b0C Warmer 6000-8000 Years Ago","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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":true,"token":"eyJpbWciOiJodHRwczpcL1wvY2xpbWF0ZS1zY2llbmNlLnByZXNzXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI2XC8wMVwvMDBTY3JlZW5zaG90LTIwMjYtMDEtMTMtMDk1NzE1LTEwMjR4NjkwLnBuZyIsInR4dCI6Ik5ldyBTdHVkeTogR3JlZW5sYW5kIFdhcyAzLTdcdTAwYjBDIFdhcm1lciBhbmQgRmFyIExlc3MgR2xhY2lhdGVkIFRoYW4gVG9kYXkgNjAwMC04MDAwIFllYXJzIEFnbyIsInRlbXBsYXRlIjoiaGlnaHdheSIsImZvbnQiOiIiLCJibG9nX2lkIjoxNTU4MTI0NDl9.t4weAU8cFhBZ4ZXIHXt9L2kXqKIpHt6P8GDw30NviLUMQ"},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":{"0":"post-421181","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-uncategorized","9":"fallback-thumbnail"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/01\/00Screenshot-2026-01-13-095715.png?fit=1393%2C939&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1Lzf","jetpack-related-posts":[{"id":340131,"url":"https:\/\/climatescience.press\/?p=340131","url_meta":{"origin":421181,"position":0},"title":"Early Holocene Reef Growth \u2018Substantial And Active\u2019 With 4\u00b0C Warmer Water And Faster-Than-Today Changes","author":"uwe.roland.gross","date":"20\/08\/2024","format":false,"excerpt":"A new study dispels the claim that coral reefs are at risk from modern environmental changes or rates. 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