The report "Spotlight on the Top 25 Methane Plumes in 2025: Landfills", released by the University of California, Los Angeles (UCLA), names the world's top methane-emitting waste sites.
- Scope: 25 landfills in 18 countries emitting 3.6–7.6 tonnes of methane per hour, identified from satellite data.
- India: Jawahar Nagar landfill, Telangana (5.9 t/hr) ranked 4th; Kanjurmarg landfill, Mumbai (4.9 t/hr) ranked 12th.
- Data: Nearly 3,000 plumes from over 700 waste sites, using satellites such as NASA EMIT and Carbon Mapper.
- Context: Landfills produce about 20% of global methane; methane traps 86 times more heat than CO₂ and drives over 45% of recent warming.