You can put a LOT of trash in a small space. The cost of landfills is usually measured in the cost to collect and transport garbage to the landfills. Also, once

You can put a LOT of trash in a small space. The cost of landfills is usually measured in the cost to collect and transport garbage to the landfills. Also, once the landfill is full it is often still usable after the fact. Especially if it is managed properly. Add this to the fact that quarries are creating excellent places to consign garbage. The big problem is the cost of energy to move and bury the garbage. A lot of third world countries don't have extensive waste management networks like the USA.