Green Cities...Hah!
How can a city be called "green", when the air is toxic to breathe, and causes many hundreds of deaths yearly, and many more than that wounded, in all of the cities mentioned?
Why worry about CO2 (what we breathe out), when the toxic soup is actually what we breathe in! A third of the population with cancer...where the heck do you think it comes from? Not from CO2, that's for sure!
We need to stop the burning of fuels in city limits...period!
Plasma-based technologies released in the next few months will make that possible, finally. Then perhaps we can truly call cities green.