What I find most wrong with the "its already too late" type statements is that such statement both "shifts blame" on some level (the same way that people with health issues, even though they may have genetic predisposition to chronic disease / risk factors, can still say "well with good health insurance the acute problems can be dealt with") AND it sorta forces a "why even try" response -- as that piece from the Economist suggests, the actual SUCCESSES of dealing with CFC's ought to be a model for dealing with all HFC's and carbon particulate. If this is a serious problem that is caused primarily by the activities that put the most strongly heat trapping compounds in the atmosphere than the focus ought to be on the compounds and not the countries. If that means that an effort has to be made to make if attractive to use other 'technologies" then work with the industries most capable of promoting those "good things to life". When then got rid of Freon they did not say "no more compressor based heat pumps" -- the effort was to work with Dow and Carrier and Lennox to make better alternatives.
Make it a crime to put SOOT in the air. Spread responsibility and encourage development that, even it forces people to change their lives, changes than to something more modern and sustainable. You can't convince me that some boring solar box that can bake a pita in 12 minutes is better than a nice cooking fire, how are you going to convince the billions of folks in the undeveloped world of that. If the developed countries really got serious about that sort of thing it would involve more than the "trade in your wood fires for a solar cooker" (which is, even in a wonderfully "retro-science geek" world an awfully big trade off) but a serious effort to get actual SIZZLING electric stoves {and the houses that makes sense to have them in...) to people in the more primitive world. The nomadic lifestyle is not romantic or noble, it is unsustainable. That means developing better means of electric generation (I think nuclear has lots more potential, but large scale solar thermal ought to be well suited to some places, and hydroelectric and even, gasp, natural gas, which has near zero carbon particulates and tons of potential, even though it does contribute CO2, it is so amenable to "carbon capture / sequestration" that it could be done for a fraction of the cost of that associated with other sources. It may even be the perfect "feedstock" for a hydrogen based economy...
While I know that methane can and does bubble to the surface in parts of the world it is ridiculous to have that in a presentation that adheres to the orthodoxy of anthropomorphic climate change -- even if one tries to make some convoluted argument that human activity has caused the rise in temperature to release the methane hydrates from the seas (or that if/when our actions force such an even 'its all over') the fact is that methane was present in much greater quantities in the Earth's atmosphere in prehistoric time --
http://www.giss.nasa.gov/research/news/20011210/