{"id":664888,"date":"2026-01-19T10:31:19","date_gmt":"2026-01-19T09:31:19","guid":{"rendered":"https:\/\/cronologia-universale.it\/2100-3\/"},"modified":"2026-01-19T10:31:19","modified_gmt":"2026-01-19T09:31:19","slug":"2100","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/2100\/","title":{"rendered":"2100"},"content":{"rendered":"<p>The saturation level of the oceans with respect to aragonite (the most soluble form of calcium carbonate) drops to 3.0. It was 4.0 in 1800. The energy required for calcification increases, and the calcification rate of corals drops dramatically as a result.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The saturation level of the oceans with respect to aragonite (the most soluble form of&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30],"tags":[],"class_list":["post-664888","post","type-post","status-publish","format-standard","hentry","category-b-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>2100 - Cronologia Universale<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cronologia-universale.it\/en\/2100\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2100 - 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