Massive cities are, by all measures, more efficient than suburban life or rural life. Distribution of resources scales very, very well with population density. Trucking in and out food is orders of magnitude greener than producers sending out 1000 smaller trucks much farther across sprawling rural areas, then everyone trucking themselves around to the grocery store 10-20 minutes away. Wiring power to a 30 floor apartment building is much more efficient than stringing copper to an equal number of suburban homes. Heating a large building with a huge steam boiler, when divided out, is much more efficient than heating the equivalent in suburban homes with electricity, gas, or any theoretical technology! Thermodynamics are just plain working against you!
You seem to just be trolling for replies early in the article so I'm not going to waste time pulling up links. I'm sure others in the community have plenty handy. But if you are being earnest, just think about it for half a second. You might find the way of life unpleasant. That's ok. Many people do. It falls in and out of style over time. But come on, man.