{
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    "relation": "topic-surface-only",
    "scan_signal_ids": []
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  "dek": "联合国环境规划署发布的最新报告指出，全球目前正朝着气温升温2.6摄氏度的方向发展。当务之急是将气温超过1.5摄氏度这一阈值的幅度与持续时间控制在尽可能小的范围内，因为某些后果可能是不可逆转的。",
  "desk": "politics",
  "event_id": "event-bcddf50868ad6be85da2c035",
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      "published_at": "2026-09-06T10:41:00Z",
      "role": "media",
      "source_id": "dw-chinese",
      "source_name": "Deutsche Welle",
      "title": "联合国环境署：限制升温1.5度的目标已无法实现",
      "url": "https://www.dw.com/zh/联合国环境署：限制升温1-5度的目标已无法实现/a-78764938?maca=chi-rss-chi-all-1127-rdf",
      "version_id": "itemv-2ff371c805ee1a8077ae11f3"
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  "headline": "联合国环境署：限制升温1.5度的目标已无法实现",
  "lead": false,
  "lead_reason": "Current single-source metadata is retained but not promoted as a lead.",
  "limitations": [
    "Palimpsest retained only feed title, canonical link, time, and a bounded plain-text excerpt; it did not fetch the article body.",
    "The evidence-strength label describes source structure, not truth, intent, impact, or causation.",
    "Declared instrument links are topical pointers until a separate scan or economic observation is joined by time and method.",
    "Title-similarity clustering can miss differently worded or cross-language accounts and can join closely worded updates.",
    "This dossier currently contains one independent evidence group and remains explicitly attributed."
  ],
  "mutation": {
    "kind": "unchanged",
    "previous_version_id": "eventv-42dd8a52112351382e84411a"
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  "published_at": "2026-09-06T10:41:00Z",
  "reported_facts": [
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      "evidence_item_id": "item-1132b9941f5223858d97af28",
      "published_at": "2026-09-06T10:41:00Z",
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  "updated_at": "2026-09-06T10:41:00Z",
  "url": "https://palimpsest.info/news/wire/event-bcddf50868ad6be85da2c035/",
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}