but just a couple of comments that represent a slightly different approach.
I don't feel most people who have studied climate change place much of the blame on the third world, who live mostly hand to mouth. The disproportionate use of hydrocarbons is the first, and to a lesser extent, second world economies. Third world economies are much more subsistence and tend to utilize wood and other biomass for fuel. This does set into motion other problems that contribute to climate change, like deforestation and some less than optimum agriculture practices, but who can really blame people trying to survive poverty?
I think the comments about the 'willing consumers' stems from lifestyles far in excess of needs, that use a lion share of the carbon. It is not just in what we choose to buy, but heating a 3000 sq/ft house for a family of four, sixty miles from work.
As to the dominate market players using political and economic power to limit the public's choices, I agree totally. It would be very different today if solar, geo thermal, hydro, and wind; had been given the incentives, grants, and tax breaks that nuclear and fossil fuel industries have been given for R&D, the past sixty years. Instead there has been a steady suppression of both funding and venue.
The same can be said for the support and subsidies for the corporate farm, while small farmers and organic practitioners have not just had no funding, but had a legislative and regulatory war thrust upon them my corporations. This has affected everything from the crops they have tried to grow, to developing the markets, to securing water.
The last point as well, has limited public choice. The privatization of everything from public education to the electric grid. Half of the problem for renewables is not in the technology, but rather in the corporate perception that they own the grid. Thirty five years ago the grid was a patchwork of public utilities run by PUC's, now the grid is managed out of corporate boardrooms devising schemes to maximize profits and minimize competition. What should be a national public infrastructure has until recently been a gift to energy corporations for their maladministration and upkeep, limited by profit margins.
edit: for spelling and grammar