Everyone go home, the Problem IS Solved...!
...Take all the world's garbage that would go into a landfill and simply dump it into an active volcano. Lava can reach up to 2,400 degrees fahrenheit, I would imagine that would be hot enough to burn my dirtiest of trash. The problem now is getting everyone's trash to a volcano (I guess I haven't thought this one all the way through).
...What are your thoughts?