Your chart is very unclear and perhaps not too meaningful. There is no description of what is measured. Is zero good (no methane produced) and what does 30 mean? Is there a factor for the size of the City? A smaller city will produce less waste and less methane than a larger city. While gross numbers are needed, isn't it more meaningful when comparing city to city to do it on a per capita basis? I applaud your efforts to move cities to environmental and organics management. I don't think this chart will help the effort