Personal choice is a very small aspect here. Americans can not choose to have lower carbon cement, steel, manufacturing, shipping, airliners, etc. Yes, we can do a lot by not flying ourselves, buying less items, eating less meat, but at the end of the day: MOST of our solutions are going to come from corporations and government.
Exactly. An individual can live their entire life taking short showers, abstaining from meat, and generally living like it's the 15th century and all of their efforts are erased when the Keystone XL pipeline sprays 300,000 gallons of oil over North Dakota.