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<p>Atmospheric Methane Removal (AMR) is a third class of climate intervention, along with Carbon Dioxide Removal (CDR) and Solar Radiation Management (SRM). We show that, 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 tropospheric ozone can be further modulated by background pollutant levels.</p>

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Atmospheric methane removal as a third climate intervention: termination risks and air pollutant effects

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月24日

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

摘要

Atmospheric Methane Removal (AMR) is a third class of climate intervention, along with Carbon Dioxide Removal (CDR) and Solar Radiation Management (SRM). We show that, 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 tropospheric ozone can be further modulated by background pollutant levels.