{"id":374641,"date":"2025-04-10T17:18:26","date_gmt":"2025-04-10T15:18:26","guid":{"rendered":"https:\/\/climatescience.press\/?p=374641"},"modified":"2025-04-10T17:18:28","modified_gmt":"2025-04-10T15:18:28","slug":"new-study-good-news-greenlands-ice-loss-likely-wont-disrupt-atlantic-current","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=374641","title":{"rendered":"New Study, Good News Greenland\u2019s Ice Loss Likely Won\u2019t Disrupt Atlantic Current"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

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

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

By\u00a0P Gosselin<\/a><\/em><\/p>\n\n\n\n

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

\u201cWill dissuade people from climate doomism,\u201d researcher hopes.\u00a0 Ice sheet runoff at the coast has much less impact on the AMOC than melting ice bergs out to sea do.\u00a0<\/strong><\/p>\n\n\n\n

We hear it again and again: the melting ice in Greenland due to global warming will soon lead to a collapse of the Gulf Stream system, with the result that it would be difficult to restart. Then we would see great disasters like those depicted in Roland Emmerich\u2019s dramatic climate movie \u201cDay after Tomorrow\u201d.<\/p>\n\n\n\n

Hat-tip: EIKE<\/a><\/strong><\/p>\n\n\n\n

The seawater salinity in the north is critical because the salt-rich tropical water cools and sinks due to the higher salt content. This acts as the pump that makes circulation possible in the first place. This serves to transport very large amounts of heat into the North Atlantic, keeping Europe on the mild side in the wintertime. Scenarios have been published recently that calculate a drastic cooling of the large area (especially Europe) around it if the Gulf Stream system got \u201cswitched off\u201d.  But those scenarios are proving to be over-dramatic and alarmist.<\/p>\n\n\n\n

Yuxin Zhou<\/a>, a postdoctoral researcher in UC Santa Barbara\u2019s Department of Earth Science, recently\u00a0went back in history to study when the AMOC was severely weakened, from 68,000 to 16,000 years ago, when the Laurentide Ice Sheet existed, and thick ice covered northern North America and even New York City. Today that massive ice shelf of course no longer exists and thus there is no longer the potential of an ice melt and iceberg release of that scale.<\/p>\n\n\n\n

Very different, less dramatic circumstances today<\/strong><\/p>\n\n\n\n

By analyzing sea sediment deposited by floating ice bergs out to sea in the North Atlantic, Zhou found that AMOC heat transferring oceanic current had been already moderately weakened back then before all the icebergs floated over the North Atlantic. Comparing the situation to today: \u201cIn contrast, the circulation is very vigorous right now, which suggests the melting of Greenland is not likely to plunge the North Atlantic into another deep freeze of the sort the alarmists fret about all the time.<\/p>\n\n\n\n

Moreover, Technology Networks here<\/a> adds (emphasis added):<\/p>\n\n\n\n

\n

Not all melting has the same effect on the Atlantic circulation. Freshwater released as icebergs has a much larger impact on the AMOC than runoff, which is released after melting on land.<\/strong> Icebergs can cool the surrounding seawater, causing it to freeze into sea ice. Ironically, this ice layer acts as a blanket, keeping the ocean surface warm and preventing it from plunging down to the depths and driving the Atlantic circulation. What\u2019s more, icebergs travel much farther out to sea than runoff, delivering freshwater to the regions where this deepwater formation occurs.\u201d<\/p>\n<\/blockquote>\n\n\n

\n
\"\"
Today\u2019s Greenland\u2019s freshwater runoff won\u2019t have the anywhere near same impact as the mass icebergs of the last age. Image: Yuxin Zhou et al.<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n

Thus, should Greenland\u2019s glaciers further recede inland, they would only melt on land and release freshwater at the coast rather than release icebergs far out to sea. This would mean a considerably smaller impact on the AMOC.<\/p>\n\n\n\n

Stop the doomism<\/strong><\/p>\n\n\n\n

Zhou summarizes: \u201c\u201cWe have a lot of anxiety about how fast climate change is happening and how dramatic the changes could be. But this is a piece of good climate news that hopefully will dissuade people from climate doomism, and give people hope, because we do need hope to fight the climate crisis.\u201d<\/p>\n\n\n\n

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

We hear it again and again: the melting ice in Greenland due to global warming will soon lead to a collapse of the Gulf Stream system, with the result that it would be difficult to restart. Then we would see great disasters like those depicted in Roland Emmerich\u2019s dramatic climate movie \u201cDay after Tomorrow\u201d.<\/p>\n","protected":false},"author":121246920,"featured_media":374648,"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":[691824517,691819352,691818087,691818252,691821383],"class_list":{"0":"post-374641","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-uncategorized","8":"tag-atlantic-meridional-ocean-circulation-amoc","9":"tag-climate-doom","10":"tag-global-warming","11":"tag-greenland","12":"tag-gulf-stream","14":"fallback-thumbnail"},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/04\/037-3-foukal-f1.jpg?fit=2176%2C1035&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1zsB","jetpack-related-posts":[{"id":413878,"url":"https:\/\/climatescience.press\/?p=413878","url_meta":{"origin":374641,"position":0},"title":"An Ice Age May Come, New York Post, But If It Does, Ocean Current Collapse Won\u2019t Be the Cause","author":"uwe.roland.gross","date":"19\/11\/2025","format":false,"excerpt":"The New York Post (NYP) covered a recent study that claims the \u201cGulf Stream\u201d could soon collapse due to human caused climate change. Scientifically, the Atlantic Meridional Overturning Circulation (AMOC) has slowed and sped up on its own due to physical factors that humans have no control over, but it\u2026","rel":"","context":"In \"Atlantic meridional overturning circulation (AMOC)\"","block_context":{"text":"Atlantic meridional overturning circulation (AMOC)","link":"https:\/\/climatescience.press\/?tag=atlantic-meridional-overturning-circulation-amoc"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQMyuaW5zRRfKusWuCVy5OtlBavUb_8xSDgknI5zE1YjyJLUKkWc0oM5PV5getJbgkX3P2mhQJaUaZoy2dKBryYVuLLDQ6ipN27btSN0pVkVlFqTDT178iD5zD1suVWU-1.jpeg?fit=1200%2C701&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQMyuaW5zRRfKusWuCVy5OtlBavUb_8xSDgknI5zE1YjyJLUKkWc0oM5PV5getJbgkX3P2mhQJaUaZoy2dKBryYVuLLDQ6ipN27btSN0pVkVlFqTDT178iD5zD1suVWU-1.jpeg?fit=1200%2C701&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQMyuaW5zRRfKusWuCVy5OtlBavUb_8xSDgknI5zE1YjyJLUKkWc0oM5PV5getJbgkX3P2mhQJaUaZoy2dKBryYVuLLDQ6ipN27btSN0pVkVlFqTDT178iD5zD1suVWU-1.jpeg?fit=1200%2C701&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQMyuaW5zRRfKusWuCVy5OtlBavUb_8xSDgknI5zE1YjyJLUKkWc0oM5PV5getJbgkX3P2mhQJaUaZoy2dKBryYVuLLDQ6ipN27btSN0pVkVlFqTDT178iD5zD1suVWU-1.jpeg?fit=1200%2C701&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQMyuaW5zRRfKusWuCVy5OtlBavUb_8xSDgknI5zE1YjyJLUKkWc0oM5PV5getJbgkX3P2mhQJaUaZoy2dKBryYVuLLDQ6ipN27btSN0pVkVlFqTDT178iD5zD1suVWU-1.jpeg?fit=1200%2C701&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":348814,"url":"https:\/\/climatescience.press\/?p=348814","url_meta":{"origin":374641,"position":1},"title":"Gulf Stream Collapsing\u00a0Again!","author":"uwe.roland.gross","date":"25\/10\/2024","format":false,"excerpt":"Yes, it\u2019s that old bogeyman again! Its \u201cThe Day After Tomorrow\u201d all over again!","rel":"","context":"In \"Atlantic meridional overturning circulation (AMOC)\"","block_context":{"text":"Atlantic meridional overturning circulation (AMOC)","link":"https:\/\/climatescience.press\/?tag=atlantic-meridional-overturning-circulation-amoc"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/10\/0ddd3.jpg?fit=1200%2C842&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/10\/0ddd3.jpg?fit=1200%2C842&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/10\/0ddd3.jpg?fit=1200%2C842&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/10\/0ddd3.jpg?fit=1200%2C842&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/10\/0ddd3.jpg?fit=1200%2C842&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":354072,"url":"https:\/\/climatescience.press\/?p=354072","url_meta":{"origin":374641,"position":2},"title":"Michael Mann\u2019s Latest Attempts to Support the \u2018Hockey Stick\u2019 Graph Aren\u2019t Even Convincing Alarmists","author":"uwe.roland.gross","date":"12\/12\/2024","format":false,"excerpt":"The Atlantic hurricane season has come to an end, and the global warming believers have been looking for records to ascribe to global warming. 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