May 9 , 2026
16 hrs 0 min
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- The United Nations (UN) expanded the Methane Alert and Response System (MARS) to include the coal and waste sectors.
- The decision followed satellite data that identified the Kanjurmarg landfill in India among the world’s three largest methane-emitting landfill sites.
- Other major methane-emitting landfill sites were identified in Chile.
- MARS is the world’s first global satellite-based system for monitoring methane super-emitters.
- The system connects satellite data with rapid methane mitigation and response efforts.
- MARS functions under the International Methane Emissions Observatory (IMEO) of the United Nations Environment Programme (UNEP).
- The system was announced during the 27th Conference of the Parties (COP27) and was officially launched in January 2023.

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