{"id":191550,"date":"2026-07-08T11:15:31","date_gmt":"2026-07-08T16:45:31","guid":{"rendered":"https:\/\/newslink360.space\/?p=191550"},"modified":"2026-07-08T11:15:31","modified_gmt":"2026-07-08T16:45:31","slug":"scientists-predict-when-earths-last-plant-could-die","status":"publish","type":"post","link":"https:\/\/newslink360.space\/?p=191550","title":{"rendered":"Scientists Predict When Earth&#8217;s Last Plant Could Die"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div>\n<p class=\"wp-block-paragraph\">With the increased energy output, we would all wonder how long Earth can remain habitable now that the Sun is slowly getting more energetic. In the new study, conducted by using three-dimensional climate models, researchers obtained fresh insights into this problem as the fate of the biosphere now is shown to depend not only on <a href=\"https:\/\/www.techexplorist.com\/satellite-data-help-guide-plans-solar-power-plants\/88677\/\" target=\"_blank\" rel=\"noopener\">increasing solar radiation<\/a> but also on how carbon dioxide levels change in time.<\/p>\n<p class=\"wp-block-paragraph\">Researchers estimated future steady-state climates at key locations using a solar constant that either increases while CO\u2082 mixing ratios are lowered. The three-dimensional model revealed much richer results (and also less warming, as it was earlier overestimated).<\/p>\n<p class=\"wp-block-paragraph\">Two limiting cases were considered:<\/p>\n<p class=\"wp-block-paragraph\">Strong weathering: Surface temperature remains constant while CO\u2082 is gradually drawn down.<\/p>\n<p class=\"wp-block-paragraph\">Weak weathering: CO\u2082 remains constant while surface temperature rises.<\/p>\n<p class=\"wp-block-paragraph\">Under strong weathering, the conventional limit for plant survival comes into play. C4 photosynthesis, used by many plants, fails when atmospheric CO\u2082 drops below about 10 ppm, a threshold expected around 1.35 billion years from now.<\/p>\n<p class=\"wp-block-paragraph\">The study raises the intriguing possibility that life may survive longer than anyone previously thought. Crassulacean acid metabolism (CAM) photosynthesis allowed for survival below this threshold, while aquatic plants could use dissolved bicarbonate to supplement low atmospheric CO\u2082 concentrations. If the starvation limit is set at 1 ppm, the vegetative biosphere could continue for another 1.84 billion years.<\/p>\n<p class=\"wp-block-paragraph\">Under weak weathering, heat becomes the limiting factor. Earth would be too hot for most land plants at 1.68 billion years (surface temperatures above 323 K), and too hot for all land plants by 1.87 billion years (above 338 K). These thresholds approach the moist and runaway greenhouse limits, where Earth\u2019s climate would spiral into conditions similar to Venus.<\/p>\n<p class=\"wp-block-paragraph\">The research highlights that the only thing determining the future of Earth\u2019s biosphere is not one factor, but how CO\u2082 availability and a <a href=\"https:\/\/www.techexplorist.com\/warming-temperatures-increase-groundwater-depletion-rates-india\/68686\/\" target=\"_blank\" rel=\"noopener\">warming climate<\/a> interact. This, in turn, opens the potential to extend biosphere life by intervention, be it through new technology or local evolution. That may lead advanced civilization to figure out a way to control the level of <a href=\"https:\/\/www.techexplorist.com\/2025-co2-levels-higher-time-last-million\/33709\/\" target=\"_blank\" rel=\"noopener\">CO\u2082 in the atmosphere<\/a>, take away extra solar radiation hitting Earth, or even create plants with tolerance for extreme conditions.<\/p>\n<p class=\"wp-block-paragraph\">Ultimately, the study recasts Earth\u2019s future in terms of an eventual tightening of options. Whether through CO\u2082 starvation or thermal stress, the limits of the biosphere will be reached. The study also underlines resilience: that life can last longer than expected, and a little human ingenuity might keep Earth inhabitable for even longer.<\/p>\n<p class=\"wp-block-paragraph\">The Sun\u2019s brightness may be relentless, but the story of Earth\u2019s biosphere is one of adaptation, persistence, and the search for ways to endure.<\/p>\n<p class=\"reference wp-block-paragraph\"><strong>Journal Reference:<\/strong><\/p>\n<ol class=\"wp-block-list reference\">\n<li>Jacob Haqq-Misra, Eric Wolf. Maximum Lifetime of the Vegetative Biosphere. JGR Atmospheres. DOI: <a href=\"https:\/\/doi.org\/10.1029\/2025JD045586\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">10.1029\/2025JD045586<\/a><\/li>\n<\/ol>\n<\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.techexplorist.com\/when-last-plant-earth-die\/103492\/\" target=\"_blank\" rel=\"noopener\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>With the increased energy output, we would all wonder how long Earth can remain habitable now that the<\/p>\n","protected":false},"author":1,"featured_media":191551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":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":[7],"tags":[],"class_list":["post-191550","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-national-news"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/newslink360.space\/wp-content\/uploads\/2026\/07\/last-plant-on-Earth.webp","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":184712,"url":"https:\/\/newslink360.space\/?p=184712","url_meta":{"origin":191550,"position":0},"title":"Study Reveals Interstellar Comet 3I\/ATLAS Could Be The Oldest Object Detected In Solar System","author":"Ajay Kumar Verma","date":"June 23, 2026","format":false,"excerpt":"Scientists have discovered surprising details about a rare object that travelled into our solar system from another star system. By studying an interstellar comet, researchers gained new clues about the conditions that existed billions of years ago in a distant part of the galaxy, reported NASA. As interstellar comet 3I\/ATLAS\u2026","rel":"","context":"In &quot;National News&quot;","block_context":{"text":"National News","link":"https:\/\/newslink360.space\/?cat=7"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/06\/nb9au5e_comet_625x300_23_June_26.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/06\/nb9au5e_comet_625x300_23_June_26.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/06\/nb9au5e_comet_625x300_23_June_26.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/06\/nb9au5e_comet_625x300_23_June_26.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/06\/nb9au5e_comet_625x300_23_June_26.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/newslink360.space\/wp-content\/uploads\/2026\/06\/nb9au5e_comet_625x300_23_June_26.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":181714,"url":"https:\/\/newslink360.space\/?p=181714","url_meta":{"origin":191550,"position":1},"title":"4D Motion Analysis Uncovers New Predictors for Heart Disease","author":"Ajay Kumar Verma","date":"June 17, 2026","format":false,"excerpt":"FOUR-DIMENSIONAL (4D) motion analysis of the left ventricle has unveiled six new motion phenogroups for determining cardiovascular disease outcomes and genetic risk, according to researchers from Imperial College London, United Kingdom. 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