According to the Emmett Institute research team from the University of California, Los Angeles (UCLA), Bantargebang became the second-largest methane-emitting landfill in the world in 2025.
This methane gas comes from the decomposition of organic waste, and the high level of emissions indicates that there is a lot of waste that is not being managed optimally.
Methane is classified as a greenhouse gas that can accumulate in the atmosphere and contribute to global warming.
Based on UCLA's data, the Bantargebang Integrated Waste Processing Plant (TPST), located in Bekasi, West Java, was detected to release about 6.3 metric tons of methane per hour by 2025.
Bantargebang is only second to the landfill in Campo de Mayo, Buenos Aires, Argentina, which produces about 7.6 metric tons of methane per hour.
Here is a list of 25 landfills worldwide that released the largest methane emissions in 2025:
- Campo de Mayo, Buenos Aires Province, Argentina: 7.6 metric tons per hour
- Bekasi, West Java, Indonesia: 6.3
- Jeram, Selangor, Malaysia: 6
- Secunderabad, Telangana, India: 5.9
- Tiltil, Chile: 5.5
- Talagante, Chile: 5.2
- Riyadh, Saudi Arabia: 5.1
- Kamphaeng Saen, Nakhon Pathom, Thailand: 5
- Penco, Biobío, Chile: 5
- Fazenda Rio Grande, Paraná, Brazil: 4.9
- Al Jumum, Saudi Arabia: 4.9
- Maharashtra, India: 4.9
- Caieiras, Brazil: 4.8
- Rodriguez, Rizal, Philippines: 4.6
- Algiers, Algeria: 4.3
- Hong Kong North District, S.A.R.: 4.2
- Simeprodeso, Nuevo León, Mexico: 4.1
- Southern District, Israel: 4.1
- Fyli, Attica, Greece: 4
- Mauá, Brazil: 4
- Needville, Texas, United States: 3.8
- Ray County, Iran: 3.8
- Rajm Khashman-Muslan, Al Ahmadi, Kuwait: 3.8
- Sile, Turkey: 3.8
- Menemen, Turkey: 3.6
If calculated on average, each landfill listed here produces 5 metric tons of methane per hour.
That figure is equivalent to the emissions from one million sport utility vehicles (SUVs), or one large-scale coal-fired power plant with a capacity of 500 megawatts.
The UCLA research team collected this data from emissions monitored by Carbon Mapper via Planet Labs satellites and NASA space stations during the period from January 1 to December 31, 2025.