I wouldn't go that far.
> Per the most recent Inventory Report, U.S. landfills released an estimated 109.3 million metric tons of carbon dioxide equivalent (MMTCO2e) of methane into the atmosphere in 2020; this represents 16.8 percent of the total U.S. anthropogenic methane emissions across all sectors.
https://www.epa.gov/lmop/frequent-questions-about-landfill-g....