{
  "id": 5425631,
  "title": "The Arctic melt season is a week longer now than it was in the 1980s, new research on sea ice trends shows",
  "url": "https://urgent.news/2026/09/03/the-arctic-melt-season-is-a-week-longer-now-than-it-was-in-the-1980s",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-03T22:00:06.000Z",
  "source": {
    "name": "Phys.org",
    "slug": "phys-org",
    "url": "https://phys.org/news/2026-09-arctic-season-week-longer-1980s.html"
  },
  "original_language": "en",
  "account": "The Arctic's melt season has extended by roughly seven and a half days since 1979, primarily due to a delayed autumn freeze-up, according to new research published in Nature Reviews Earth & Environment. This shift is largely attributed to the later formation of sea ice in the fall. Sea ice plays a crucial role in reflecting sunlight back into space, with a high albedo between 60% and 90%. When the ice melts and is replaced by darker ocean water, which reflects only about 7% of sunlight, it leads to increased absorption of solar energy and subsequent warming. This warming cycle reduces ice coverage and amplifies climate change. The study, led by research scientist Melinda Webster of the University of Washington's Applied Physics Laboratory, highlights the divergent responses between the Arctic and Antarctic to climate change. While the Arctic's sea ice cover has been declining, Antarctica experienced record losses in recent years. The research emphasizes the need for continued monitoring and international cooperation to address the challenges posed by these changes, particularly in mitigating climate change through greenhouse gas emissions reduction.",
  "summary": "Relatively few people have been to the Arctic, and even fewer have set foot in Antarctica. Most people rely on imagination and the media to visualize these landscapes and the ways they are changing.",
  "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."
}