{"id":431203,"date":"2026-03-14T18:29:40","date_gmt":"2026-03-14T17:29:40","guid":{"rendered":"https:\/\/climatescience.press\/?p=431203"},"modified":"2026-03-14T18:29:42","modified_gmt":"2026-03-14T17:29:42","slug":"new-studies-uk-sea-levels-were-4-meters-higher-than-today-during-the-mid-holocene","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=431203","title":{"rendered":"New Studies: UK Sea Levels Were 4 Meters Higher Than Today During The Mid-Holocene"},"content":{"rendered":"
\n
\"\"<\/figure>\n<\/div>\n\n\n

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

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

Solway Firth (UK) relative sea levels were 3.25 \u2013 4 m higher than today from ~7000 to 5500 years ago before declining to present over the last few millennia (Hanan et al., 2026<\/a><\/strong>).<\/p>\n\n\n\n

The reconstruction coring sites were located up to ~3 km inland from the modern coast.<\/p>\n\n\n\n

New research also indicates Western Scotland\u2019s relative sea levels were 4 to 5 m above present during the Mid-Holocene before declining to modern levels (Selby et al., 2026<\/a><\/strong>).<\/p>\n\n\n\n

\"\"
Image Source: Hanan et al., 2026<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n

\n
\"\"
Image Source: Selby et al., 2026<\/a><\/strong><\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"

Solway Firth (UK) relative sea levels were 3.25 \u2013 4 m higher than today from ~7000 to 5500 years ago before declining to present over the last few millennia (Hanan et al., 2026).<\/p>\n","protected":false},"author":121246920,"featured_media":431212,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_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":[691818192,691822962,691829017,691827996],"class_list":["post-431203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-holocene","tag-relative-sea-level-rsl","tag-sea-level-2","tag-united-kingdom","fallback-thumbnail"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1OaT","jetpack-related-posts":[{"id":261496,"url":"https:\/\/climatescience.press\/?p=261496","url_meta":{"origin":431203,"position":0},"title":"New Study: Sea Levels 3-4 Meters Higher Than Today When CO2 Was At \u2018Safe\u2019 Levels","author":"uwe.roland.gross","date":"06\/10\/2023","format":false,"excerpt":"Per a new published study (Martins et al., 2023), during the Mid-Holocene (~7000 to ~4000 years ago), when CO2 was a \u201csafe\u201d ~265 ppm, the sea levels on the coasts of Brazil were 3 to 4 meters higher than they are now. Sea levels have been falling to the present\u2026","rel":"","context":"In \"Brasil\"","block_context":{"text":"Brasil","link":"https:\/\/climatescience.press\/?tag=brasil"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0Brasil_Pipa__.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0Brasil_Pipa__.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0Brasil_Pipa__.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0Brasil_Pipa__.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0Brasil_Pipa__.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":451101,"url":"https:\/\/climatescience.press\/?p=451101","url_meta":{"origin":431203,"position":1},"title":"New Study: Chile\u2019s Relative Sea Level Was 3.2 Meters Higher Than Today During The Mid-Holocene","author":"uwe.roland.gross","date":"06\/19\/2026","format":false,"excerpt":"Higher sea levels were due to a warmer climate, or the consequence of more water in ocean basins rather than locked up on land as ice.","rel":"","context":"In \"Chilean coast\"","block_context":{"text":"Chilean coast","link":"https:\/\/climatescience.press\/?tag=chilean-coast"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/06\/0-ChatGPT-I-Chiles-Relative-Sea-Level-Was-3.2-Meters-Higher-Than-Today-During-The-Mid-Holocene.png?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/06\/0-ChatGPT-I-Chiles-Relative-Sea-Level-Was-3.2-Meters-Higher-Than-Today-During-The-Mid-Holocene.png?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/06\/0-ChatGPT-I-Chiles-Relative-Sea-Level-Was-3.2-Meters-Higher-Than-Today-During-The-Mid-Holocene.png?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/06\/0-ChatGPT-I-Chiles-Relative-Sea-Level-Was-3.2-Meters-Higher-Than-Today-During-The-Mid-Holocene.png?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/06\/0-ChatGPT-I-Chiles-Relative-Sea-Level-Was-3.2-Meters-Higher-Than-Today-During-The-Mid-Holocene.png?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":247513,"url":"https:\/\/climatescience.press\/?p=247513","url_meta":{"origin":431203,"position":2},"title":"More Evidence Emerges That Mid-Holocene Sea Levels Were 1.5 to 3 Meters Higher Than Today","author":"uwe.roland.gross","date":"03\/14\/2023","format":false,"excerpt":"Two new studies indicate centennial-scale sea level rise rates ranged up to 29-45 mm\/yr during the period between 14,500 and 8000 years ago, when CO2 levels were 250 to 265 ppm.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/03\/image-396.png?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/03\/image-396.png?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/03\/image-396.png?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/03\/image-396.png?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/03\/image-396.png?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":280433,"url":"https:\/\/climatescience.press\/?p=280433","url_meta":{"origin":431203,"position":3},"title":"New Research: Relative Sea Level Along The Coasts Of Japan Has Fallen Nearly A Meter Since The 1800s","author":"uwe.roland.gross","date":"09\/26\/2023","format":false,"excerpt":"More evidence emerges suggesting modern relative sea level (RSL) is among the lowest in several millennia. 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