In some countries without sufficient landfill systems, the pervasive smell of burning trash also fills the air...and you also get used to it pretty quick as wel

In some countries without sufficient landfill systems, the pervasive smell of burning trash also fills the air...and you also get used to it pretty quick as well. It's both kind of amazing and kind of expected how quickly we adapt to different sent environments. Humans tend to saturate our ability to smell novel things quickly, which is why it's often hard to track things down by smell -- we quickly lose the ability to smell it.