[BugsJustFindMe]

> If you read more carefully this is mostly explained. > Decay in landfills is anaerobic and produces methane, which has a higher impact on warming than CO2.

It's not clear to me where you're getting that from. The page neither mentions the word anaerobic nor say that composting doesn't also release the exact same gasses just somewhere else. At best it leans on the reader feeling an emotional difference between the words "decompose" and "decay".