The thing that affluent countries—meaning the U.S., Canada, Australia, etc.—are desperate to avoid is to have to radically alter their energy-intensive lifestyles. Although some European countries have made tentative moves in that direction, they have fallen woefully short of genuine progress. Telling people who love their comfortable, energy-intensive lifestyles that the only real solution is to cut back drastically on energy use is political suicide. No sane politician who wants to stay in office is ready to advocate such a position.
Westerners are only willing to make enormous personal sacrifices when faced with direct threats to life (such as war and invasion); indirect threats like global warming do not qualify. Even if every one of the energy hog countries adopted the most technologically advanced, energy efficient solutions to curtail their energy use, if the majority of the people in developing nations would adjust their energy consumption to that level, carbon emissions would be far too high to be sustainable.
Naturally, since we spoiled Americans (among others)
will continue to refuse to adopt less energy profligate lifestyles, we will be
forced to turn to geoengineering to address rising CO2 levels. Too bad we have
an incredibly poor grasp of the unintended consequences of such behavior. But I
can guarantee those lessons will be learned the hard way. When it comes to the
carbon cycle, there's no such thing as a free lunch. Soon or later, the piper
has to be paid.