Pith Number

pith:G4HN26IA

pith:2026:G4HN26IAOZSSGNI5467E65X4CU

not attested not anchored not stored refs pending

Atmospheric Methane Removal as a Third Climate Intervention: Termination Risks and Air Pollutant Effects

Daniel J.A. Johansson, Didier A. Hauglustaine, Eric Zusman, Katsumasa Tanaka, Marianne T. Lund, Nico Bauer, Philippe Bousquet, Philippe Ciais, Ragnhild Skeie, Renaud de Richter, Weiwei Xiong

Atmospheric methane removal delivers only temporary cooling that rebounds when stopped, unlike permanent carbon dioxide removal.

arxiv:2601.17462 v3 · 2026-01-24 · physics.ao-ph · physics.soc-ph

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\usepackage{pith}
\pithnumber{G4HN26IAOZSSGNI5467E65X4CU}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Unlike CDR, the avoided warming by AMR is not durable due to methane's short atmospheric lifetime, although its temperature rebound upon termination is less abrupt than that of SRM. AMR's impact on air quality (surface ozone) can be further modulated by background pollutant levels.

C2weakest assumption

The analysis assumes that AMR can be implemented at scale in climate models without major technical or economic barriers and that the modeled interactions between methane removal and background pollutants accurately represent real-world atmospheric chemistry.

C3one line summary

Atmospheric methane removal delivers non-permanent cooling whose termination rebound is milder than solar radiation management while its air quality impacts depend on existing pollutant levels.

Receipt and verification

First computed	2026-06-02T01:03:41.279718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

370edd7900766523351de7be4f76fc153d35f02eb9fdafdbad5ccc0d129790ae

Aliases

arxiv: 2601.17462 · arxiv_version: 2601.17462v3 · doi: 10.48550/arxiv.2601.17462 · pith_short_12: G4HN26IAOZSS · pith_short_16: G4HN26IAOZSSGNI5 · pith_short_8: G4HN26IA

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/G4HN26IAOZSSGNI5467E65X4CU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 370edd7900766523351de7be4f76fc153d35f02eb9fdafdbad5ccc0d129790ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95d2fc2383d15035e03d2b0779c12d9fdff5e3e43133f520c805c56a861e1724",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2026-01-24T13:27:38Z",
    "title_canon_sha256": "d7322d63509f763f6c486381ea51a787261c7c0fcf634a2a663656c90e283519"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.17462",
    "kind": "arxiv",
    "version": 3
  }
}