Do you really think it's a coincidence that the products sold to you are not environmentally-friendly/sustainable/whatever? It's not because consumers demand them... Consumers just want something cheap... But consumers aren't paying for externalities upfront... neither are corps... No one pays. Thus, cheaper. You offer two comparable products but one is cheaper - people choose the cheaper one! On top of that, our world and economy is built on these natural resources. Imagine if oil became $0 or $1000/barrel. It'd wreck certain parts of the economy either way - there is a heavy investment and lobbying infrastructure built upon maintaining the status quo.

You really are using the personal responsibility framework to a high extent. Corps are the biggest issue. Most issues of CO2 generators and other such things - people are very happy to use their replacements because there is very little difference in quality of life (sometimes it's even improved). The things people most want that create CO2 and there's no way around it ever are very low contributors to CO2 overall. You could easily wipe out over half of CO2 emissions in USA by just converting everything to renewable energy resources. (electric cars + electricity production + using heat pumps)