More generally, how about an overhaul of our entire trash collection system? One concept straight out of Sci Fi: Pneumatic tubes to whisk away trash. Such a system is already in place in several European cities, as well as Roosevelt Island in New York City, processing nearly 6 tons a day. The upfront costs to develop infrastructure would be substantial, yet there are long term savings in personnel, vehicle and fuel costs, as well as CO2 emissions. It currently takes 6000 heavy garbage trucks rumbling down already over-crowded streets to remove trash from New York City alone (The very model of inefficiency--these trucks get all of 3 miles per gallon!) Such pneumatic systems may be the future of municipal waste collection.