{"id":446349,"date":"2026-05-25T04:35:27","date_gmt":"2026-05-25T11:35:27","guid":{"rendered":"https:\/\/climatescience.press\/?p=446349"},"modified":"2026-05-25T04:35:29","modified_gmt":"2026-05-25T11:35:29","slug":"michael-mann-cancelling-rcp-8-5-has-only-bought-us-50-years","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=446349","title":{"rendered":"Michael Mann: Cancelling RCP 8.5 has only Bought us 50 Years"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

From Watts Up With That?<\/a><\/p>\n\n\n\n

Essay by<\/strong> Eric Worrall<\/a><\/p>\n\n\n\n

But we still need to act immediately.<\/p>\n\n\n\n

\n

Sorry, climate change is still dangerous, no matter what nonsense Trump emits<\/strong><\/p>\n\n\n\n

By Genevieve Guenther<\/a>, Michael E. Mann<\/a> | Opinion<\/a> | May 22, 2026<\/p>\n\n\n\n

\u2026<\/p>\n\n\n\n

\u201cAfter 15 years of Dumocrats promising that \u2018Climate Change\u2019 is going to destroy the Planet, the United Nations TOP Climate Committee just admitted that its own projections (RCP8.5) were WRONG! WRONG! WRONG!\u201d Trump wrote<\/a>, quite incorrectly, on Truth Social. \u201cUnlike the Dumocrats, who use Climate Alarmism nonsense to push their Green New Scam, my Administration will always be based on TRUTH, SCIENCE, and FACT!\u201d<\/p>\n<\/blockquote>\n\n\n\n

\n

Even in light of the Trump administration\u2019s gutting of American science<\/a> and the president\u2019s well-documented reckless disregard for the truth<\/a>, this post stands out as patently, particularly absurd. But Trump\u2019s new climate-denial talking point is a weaponized version<\/a> of new developments in climate science. Trump\u2019s typically bombastic disinformation\u2014if casually combined with a real debate within the climate community about one climate projection\u2014will muddy the public understanding of science enough that Americans on both sides of the aisle might be left with an incorrect and dangerous belief that they no longer need to worry about the climate crisis.<\/p>\n\n\n\n

\u2026<\/p>\n\n\n\n

The new high-emissions scenario hypothesizes a backsliding of progress<\/a>, where current climate policies are rolled back, clean-energy development slows, and fossil-fuel use expands. This scenario leads most likely to a temperature rise of about 3.5 degrees Celsius by 2100, but the range of possible heating by that date spans from 2.5 degrees to 4.3 degrees Celsius. The scenario also projects more heating after 2100, since global emissions fail to shrink to net zero. Indeed, the new high-emissions scenario projects that the world could heat up to RCP8.5\u2019s 5 degrees Celsius by 2150<\/a>, just 50 years later.

\u2026Read more: https:\/\/thebulletin.org\/2026\/05\/sorry-climate-change-is-still-dangerous-no-matter-what-nonsense-trump-emits\/<\/a><\/p>\n<\/blockquote>\n\n\n\n

Sooo \u2013 it’s still an urgent emergency we have to deal with right now, even though thermageddon has been deferred by at least 50 years?<\/p>\n\n\n\n

For a long time I\u2019ve been relishing the prospect of Michael Mann having to publicly downgrade his climate claims, but now that moment has arrived, I don\u2019t feel the satisfaction I thought I would feel. The damage done to the global economy by these clowns \u2013 decades of stunted economic growth \u2013 is too great to feel happiness at a grudging admission their predictions were too extreme.<\/p>\n\n\n\n

Even sadder that Mann has chosen to cling to the tattered remnants of his mantle of alarmism, instead of coming clean and properly admitting he was completely wrong. To paraphrase Gandalf in Lord of the Rings<\/a> during the confrontation with the defeated wizard Saruman, even now Mann could have done some good, by following climate alarmist James Lovelock\u2019s footsteps and admitting climate alarmism was a mistake<\/a>. Such an admission might have helped to reduce the suffering in backwards outposts of climate ignorance like the European Union, by accelerating their awakening from their Net Zero nightmare.<\/p>\n\n\n\n

But Michael Mann, as always, in my opinion has placed his personal vanity ahead of attempting any kind of restitution for all the harm his \u201chide the decline<\/a>\u201d hockey stick climate alarmism has caused over the years.<\/p>\n","protected":false},"excerpt":{"rendered":"

Sooo \u2013 it’s still an urgent emergency we have to deal with right now, even though thermageddon has been deferred by at least 50 years?<\/p>\n","protected":false},"author":121246920,"featured_media":446351,"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":[691819134,691819510,691818056,691818153,691819743,691832877,691838747,691818215,691843270,691833487],"class_list":["post-446349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-climate-alarmism","tag-climate-catastrophe","tag-climate-change","tag-climate-models","tag-climate-propaganda","tag-green-new-scam","tag-ipccs-rcp8-5-model-scenario","tag-michael-mann","tag-united-nations-top-climate-committee","tag-us-president-donald-j-trump","fallback-thumbnail"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1S7b","jetpack-related-posts":[{"id":406298,"url":"https:\/\/climatescience.press\/?p=406298","url_meta":{"origin":446349,"position":0},"title":"Michael Mann\u2019s \u201cFire Hose\u201d of Misinformation: Projection at Its Finest","author":"uwe.roland.gross","date":"10\/02\/2025","format":false,"excerpt":"In his latest op-ed for the\u00a0San Francisco Chronicle\u00a0\u2014 melodramatically titled\u00a0\u201cI\u2019m a climate scientist. Trump\u2019s U.N. address is a fire hose of misinformation\u201d\u2014 Mann plays the role of truth-teller, warning the public about Donald Trump\u2019s supposedly dangerous rhetoric at the United Nations. According to Mann, nearly \u201cevery single word [Trump] spoke\u2026","rel":"","context":"In \"climate deniers\"","block_context":{"text":"climate deniers","link":"https:\/\/climatescience.press\/?tag=climate-deniers"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/10\/AQNJ7kCQIfC1mdcqWh5qZEausuIqy4uKuverD3GEAcXltoPYuDoiHpwsydEgucerH6SHPVPMumxFjSmu2P0hizg4U0A470jzwYNx50dnLHTNdLlK6Ks-afoo9QDOFWxvt5-DMTkD7lhZ7gAs0Kes5umGFks9HA.jpeg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/10\/AQNJ7kCQIfC1mdcqWh5qZEausuIqy4uKuverD3GEAcXltoPYuDoiHpwsydEgucerH6SHPVPMumxFjSmu2P0hizg4U0A470jzwYNx50dnLHTNdLlK6Ks-afoo9QDOFWxvt5-DMTkD7lhZ7gAs0Kes5umGFks9HA.jpeg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/10\/AQNJ7kCQIfC1mdcqWh5qZEausuIqy4uKuverD3GEAcXltoPYuDoiHpwsydEgucerH6SHPVPMumxFjSmu2P0hizg4U0A470jzwYNx50dnLHTNdLlK6Ks-afoo9QDOFWxvt5-DMTkD7lhZ7gAs0Kes5umGFks9HA.jpeg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/10\/AQNJ7kCQIfC1mdcqWh5qZEausuIqy4uKuverD3GEAcXltoPYuDoiHpwsydEgucerH6SHPVPMumxFjSmu2P0hizg4U0A470jzwYNx50dnLHTNdLlK6Ks-afoo9QDOFWxvt5-DMTkD7lhZ7gAs0Kes5umGFks9HA.jpeg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/10\/AQNJ7kCQIfC1mdcqWh5qZEausuIqy4uKuverD3GEAcXltoPYuDoiHpwsydEgucerH6SHPVPMumxFjSmu2P0hizg4U0A470jzwYNx50dnLHTNdLlK6Ks-afoo9QDOFWxvt5-DMTkD7lhZ7gAs0Kes5umGFks9HA.jpeg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":297472,"url":"https:\/\/climatescience.press\/?p=297472","url_meta":{"origin":446349,"position":1},"title":"Climate Trial of the Century: Mann vs Steyn \u2013 Climate Change Roundtable #94","author":"uwe.roland.gross","date":"01\/19\/2024","format":false,"excerpt":"After 12 years of delays, the defamation lawsuit brought by climate scientist Michael Mann and writer Mark Steyn finally began this week. Mann sued Steyn and others in 2012 claiming they libeled him when they mocked his infamous \u201chockey stick\u201d graph that has been the lynchpin of climate alarmism for\u2026","rel":"","context":"In \"12 years of delays\"","block_context":{"text":"12 years of delays","link":"https:\/\/climatescience.press\/?tag=12-years-of-delays"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-19-184739.png?fit=1200%2C660&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-19-184739.png?fit=1200%2C660&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-19-184739.png?fit=1200%2C660&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-19-184739.png?fit=1200%2C660&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-19-184739.png?fit=1200%2C660&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":263562,"url":"https:\/\/climatescience.press\/?p=263562","url_meta":{"origin":446349,"position":2},"title":"Sticking It to the Mann – A Pushback on Climate “Scientist” Dr. Michael Mann","author":"uwe.roland.gross","date":"06\/23\/2023","format":false,"excerpt":"Recently, hockey stick creator Dr. Michael Mann went on CBC to try linking wildfires and climate change, and the result was laughable. 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To discuss, Phelim McAleer, a filmmaker and journalist who is attending the trial in a federal court in\u2026","rel":"","context":"In \"Climate change\"","block_context":{"text":"Climate change","link":"https:\/\/climatescience.press\/?tag=climate-change"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-27-155617.png?fit=1200%2C632&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-27-155617.png?fit=1200%2C632&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-27-155617.png?fit=1200%2C632&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-27-155617.png?fit=1200%2C632&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0Screenshot-2024-01-27-155617.png?fit=1200%2C632&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":289845,"url":"https:\/\/climatescience.press\/?p=289845","url_meta":{"origin":446349,"position":5},"title":"Mann: \u201cclimate deniers are endanging you, your children, and your grandchildren\u201d","author":"uwe.roland.gross","date":"12\/03\/2023","format":false,"excerpt":"From Watts Up With That? h\/t Dr. Willie Soon; So what should be done about these dangerous deniers? Mann tells his audience climate change deniers are endangering your children, but mostly avoids urging specific action. If a \u201cdenier\u201d gets murdered by a climate nut who thinks his act of violence\u2026","rel":"","context":"In \"China\"","block_context":{"text":"China","link":"https:\/\/climatescience.press\/?tag=china"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/12\/00a7e1dea76e57db5a6265eab57dc417cf.jpg?fit=1200%2C1050&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/12\/00a7e1dea76e57db5a6265eab57dc417cf.jpg?fit=1200%2C1050&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/12\/00a7e1dea76e57db5a6265eab57dc417cf.jpg?fit=1200%2C1050&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/12\/00a7e1dea76e57db5a6265eab57dc417cf.jpg?fit=1200%2C1050&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/12\/00a7e1dea76e57db5a6265eab57dc417cf.jpg?fit=1200%2C1050&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/05\/0-ChatGPT-Michael-Mann-Cancelling-RCP-8.5-has-only-Bought-us-50-Years-1.png?fit=1402%2C1122&ssl=1","_links":{"self":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/446349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/users\/121246920"}],"replies":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=446349"}],"version-history":[{"count":6,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/446349\/revisions"}],"predecessor-version":[{"id":446358,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/446349\/revisions\/446358"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/media\/446351"}],"wp:attachment":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=446349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=446349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=446349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}