{"id":266370,"date":"2023-07-09T14:54:30","date_gmt":"2023-07-09T12:54:30","guid":{"rendered":"https:\/\/climatescience.press\/?p=266370"},"modified":"2023-07-09T14:54:33","modified_gmt":"2023-07-09T12:54:33","slug":"new-research-ponders-consequences-of-ocean-iron-fertilization","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=266370","title":{"rendered":"New research ponders consequences of ocean iron\u00a0fertilization"},"content":{"rendered":"\n
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From Tallbloke’s Talkshop<\/a><\/p>\n\n\n\n

July 7, 2023 by\u00a0oldbrew<\/strong>\u00a0<\/p>\n\n\n\n

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Any deliberate large-scale interference in natural processes must be fraught with risks and difficulties. Nevertheless some scientists think they should seek to impose their will on nature, invoking climate models and CO2-obsessed theories as the excuse.<\/em>
\u2013 \u2013 \u2013<\/p>\n\n\n\n

Removal of excess carbon dioxide in the atmosphere, in addition to major reductions in ongoing emissions, is required to stave off the most severe consequences of climate change,\u00a0claims EurekAlert<\/a> [Talkshop comment \u2013 without offering any evidence]<\/em>.<\/p>\n\n\n\n

Large-scale ocean iron fertilization is one of several strategies that could help remove carbon dioxide, but new research published this week in Global Change Biology by a Bigelow Laboratory for Ocean Sciences researcher and colleagues shows that it might also negatively affect marine ecosystems in far corners of the ocean.<\/p>\n\n\n\n

Using advanced models of ocean biogeochemistry and ecology, the team showed that iron fertilization in the Southern Ocean could exacerbate climate change-driven nutrient shortages and productivity losses in the tropics, potentially hurting the coastal fisheries on which many people rely.<\/p>\n\n\n\n

The findings illustrate both the interconnected nature of the ocean and the need for more objective research on the relative advantages and unintended consequences of marine carbon dioxide removal.<\/p>\n\n\n\n

\u201cThese modeling experiments demonstrate the need to understand not only the implications of marine carbon dioxide removal strategies for carbon cycling, but also the ecological and \u2018downstream\u2019 implications, even those decades in the future or thousands of miles away,\u201d said Bigelow Laboratory Senior Research Scientist Ben Twining, one of the study\u2019s co-lead authors.<\/p>\n\n\n\n

The ocean is the planet\u2019s largest sink for carbon emissions. Unsurprisingly, then, plans for carbon dioxide removal are increasingly focused on marine-based strategies like iron fertilization.<\/p>\n\n\n\n

The basic idea is that adding valuable micronutrients to certain areas of the ocean \u2014 like the iron-limited Southern Ocean \u2014 will stimulate primary productivity by allowing other nutrients to be more completely consumed, enhancing the amount of carbon dioxide that phytoplankton absorb at the surface and, ultimately, sink to the seafloor when they die.<\/p>\n\n\n\n

Advocates for ocean iron fertilization have pointed out that the solution doesn\u2019t require land or freshwater and can be implemented more quickly than other strategies. And past modeling efforts have shown that iron fertilization does indeed reduce atmospheric carbon.<\/p>\n\n\n\n

However, early research also showed that fertilization could exacerbate a process known as \u201cnutrient robbing\u201d by hampering the supply of critical nutrients from iron-limited areas to adjacent regions, in turn reducing the amount of marine life and productivity at the tropics.<\/p>\n\n\n\n

On top of that, a 2021 report by the U.S. National Academies of Science argued that the current knowledge base around marine carbon dioxide removal approaches like fertilization was insufficient, especially when it came to scientists\u2019 understanding of how fertilization would interact with other climate-change driven changes to ocean processes.<\/p>\n\n\n\n

To help fill some of those knowledge gaps, the authors of the current study expanded previous modeling work, incorporating recent research on how phytoplankton use micronutrients like iron and additional considerations for climate change and fisheries impacts.<\/p>\n\n\n\n

\u201cOne of the new aspects of our work was to layer ocean iron fertilization on top of climate change,\u201d Twining said. \u201cWe also connected our results to a fisheries model, as a way to put the predicted changes in productivity into terms that are more meaningful to people.\u201d<\/p>\n\n\n\n

Their results showed a five percent decline in the biomass of fish and marine species in the tropics, including economically important coastal areas, due to large-scale iron fertilization. This was on top of a 15 percent decline expected due to climate change as warming temperatures stratify the ocean, depriving the surface of critical nutrients.<\/p>\n\n\n\n

\u201cIt\u2019s notable how the \u2018fingerprint\u2019 of ocean iron fertilization on the levels of nutrients was similar to that expected from climate change,\u201d said co-lead author of the study, Alessandro Tagliabue at the University of Liverpool. \u201cThis raises significant hurdles to the detection and monitoring of any negative impacts of fertilization.\u201d<\/p>\n\n\n\n

Full article\u00a0here<\/a>.<\/em><\/p>\n\n\n\n

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

Any deliberate large-scale interference in natural processes must be fraught with risks and difficulties. Nevertheless some scientists think they should seek to impose their will on nature, invoking climate models and CO2-obsessed theories as the excuse.<\/p>\n","protected":false},"author":121246920,"featured_media":266380,"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":[691818056,691818153,691818076,691820918,691819075],"class_list":["post-266370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-climate-change","tag-climate-models","tag-co2","tag-geoengineering","tag-modelling","fallback-thumbnail"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-17ii","jetpack-related-posts":[{"id":273850,"url":"https:\/\/climatescience.press\/?p=273850","url_meta":{"origin":266370,"position":0},"title":"\u201cThere Is No Climate Crisis\u201d\u20261600 Scientists Worldwide, Nobel Prize Laureate Sign Declaration","author":"uwe.roland.gross","date":"08\/16\/2023","format":false,"excerpt":"The message is clear: there is no climate crisis. The number of critical scientists who no longer submit to the dogma of the alleged man-made climate catastrophe is growing.","rel":"","context":"In \"Climate crisis\"","block_context":{"text":"Climate crisis","link":"https:\/\/climatescience.press\/?tag=climate-crisis"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince.png?fit=1200%2C642&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince.png?fit=1200%2C642&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince.png?fit=1200%2C642&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince.png?fit=1200%2C642&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince.png?fit=1200%2C642&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":275337,"url":"https:\/\/climatescience.press\/?p=275337","url_meta":{"origin":266370,"position":1},"title":"German Scientists: Global Warming A \u201cCorrupt\u201d, Fear-Mongering Scheme \u201cHeaded By Super-Rich\u201d","author":"uwe.roland.gross","date":"08\/24\/2023","format":false,"excerpt":"Germans Prof. Dr. Klaus-Dieter D\u00f6hler, a natural scientist and environmentalist, and Josef Kowatsch, a nature conservationist, have\u00a0published an essay at EIKE\u00a0alleging \u201cscientific corruption and waste of taxes\u201d Germany in the corrupt business model that is \u201cclimate science.\u201d\u00a0","rel":"","context":"In \"business model\"","block_context":{"text":"business model","link":"https:\/\/climatescience.press\/?tag=business-model"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/0indulgences.jpg?fit=1200%2C630&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/0indulgences.jpg?fit=1200%2C630&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/0indulgences.jpg?fit=1200%2C630&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/0indulgences.jpg?fit=1200%2C630&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/0indulgences.jpg?fit=1200%2C630&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":276310,"url":"https:\/\/climatescience.press\/?p=276310","url_meta":{"origin":266370,"position":2},"title":"CLINTEL World Climate Declaration","author":"uwe.roland.gross","date":"08\/29\/2023","format":false,"excerpt":"Climate science should be less political, while climate policies should be more scientific. 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What comes out is fully dependent on what theoreticians and programmers have put in: hypotheses, assumptions, relationships, parameterizations, stability\u2026","rel":"","context":"In \"Climate Emergency\"","block_context":{"text":"Climate Emergency","link":"https:\/\/climatescience.press\/?tag=climate-emergency"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince-1.png?fit=1200%2C642&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince-1.png?fit=1200%2C642&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince-1.png?fit=1200%2C642&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince-1.png?fit=1200%2C642&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/08\/00tince-1.png?fit=1200%2C642&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":277144,"url":"https:\/\/climatescience.press\/?p=277144","url_meta":{"origin":266370,"position":3},"title":"1,609 global scientists debunk climate hysteria","author":"uwe.roland.gross","date":"09\/04\/2023","format":false,"excerpt":"Any claim of a consensus that \u201cscience is settled\u201d regarding the existence of a dire climate crisis emergency caused by carbon dioxide is a deceptive, destructive, and costly fraud.","rel":"","context":"In \"Climate Hysteria\"","block_context":{"text":"Climate Hysteria","link":"https:\/\/climatescience.press\/?tag=climate-hysteria"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/09\/image-129.png?fit=1200%2C750&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/09\/image-129.png?fit=1200%2C750&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/09\/image-129.png?fit=1200%2C750&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/09\/image-129.png?fit=1200%2C750&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/09\/image-129.png?fit=1200%2C750&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":262437,"url":"https:\/\/climatescience.press\/?p=262437","url_meta":{"origin":266370,"position":4},"title":"limate \u2026\u00a0Continue readingNew Study Shows We Are Now \ud835\udc4a\ud835\udc5c\ud835\udc5f\ud835\udc60\ud835\udc52 At Modeling Cloud Climate Effects Than We Were In 1984","author":"uwe.roland.gross","date":"06\/16\/2023","format":false,"excerpt":"Scientists have determined the error in calculating effects of shortwave cloud forcing on climate spans 82-132 W\/m\u00b2 since the mid-1990s. Total clear-sky climate forcing linked to CO2 since 1750 is 1.8 W\/m\u00b2. Therefore, there is no way to accurately determine anthropogenic CO2\u2019s capacity to influence climate.","rel":"","context":"In \"Cloud Climate Effects\"","block_context":{"text":"Cloud Climate Effects","link":"https:\/\/climatescience.press\/?tag=cloud-climate-effects"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0thumb-1920-109771.jpg?fit=1200%2C750&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0thumb-1920-109771.jpg?fit=1200%2C750&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0thumb-1920-109771.jpg?fit=1200%2C750&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0thumb-1920-109771.jpg?fit=1200%2C750&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/06\/0thumb-1920-109771.jpg?fit=1200%2C750&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":285942,"url":"https:\/\/climatescience.press\/?p=285942","url_meta":{"origin":266370,"position":5},"title":"New Study: Lower Bound Uncertainty In Aerosol Forcing 10 Times Larger Than 10 Years Of CO2 Forcing","author":"uwe.roland.gross","date":"11\/01\/2023","format":false,"excerpt":"Aerosols, such as airborne wildfire smoke, desert dust, volcanic and pollution particles, affect Earth's climate by reflecting (some also absorb) sunlight. 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