{
  "id": 16727346,
  "title": "In 1996, Columbia scientists tested Biosphere 2’s ocean under ice-age, modern, and future CO2 levels; future conditions cut coral calcification by 40%",
  "url": "https://urgent.news/2026/10/27/in-1996-columbia-scientists-tested-biosphere-2s-ocean-under-ice-age",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-27T07:10:58.000Z",
  "source": {
    "name": "Hindustan Times - World News",
    "slug": "hindustan-times-world-news",
    "url": "https://www.hindustantimes.com/world-news/us-news/in-1996-columbia-scientists-tested-biosphere-2-s-ocean-under-ice-age-modern-and-future-co2-levels-future-conditions-cut-coral-calcification-by-40-101793005257855.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "A giant indoor ocean in Arizona showed that future CO2 levels could cut coral skeleton growth by 40%, offering a look at ocean acidification risks.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}