Not seen it but would like to. Personally I think we've gone past the point of no return. For two reasons really: 1) If all environmentally harmful activity stopped tomorrow across the globe, global warming would continue for many years and the effects would still be detrimental. 2) Even if, hyperthetically, stopping all environmentally harmful activity within 5 years could have an immediate reversal effect and stop the damage thus leaving us back the way things should be; this will not happen.
This will not happen within the next 10 years or 20 years or however many years because let's face it, there are too many developing nations now who don't know jack shit about protecting the environment and franky don't care and the major developed nations of the world don't do much to help either. every so often a new surprise is sprung on us that we didn't predict. Just the other day I saw a report on Northern Tundra warming up so that the frozen mud thaws releasing millions of tonnes of CO2 into the atmosphere. Who would have though eh?
There's also the problem of cheap flights. If you have the choice to travel by land, sea or air, choose land or sea. Flying across europe for less than 100 quid might seem like great idea but that flight will probably produce as much CO2 as the average family car produces in a year.
Ironically all the contrails from Aircraft are actually helping to mask us from further global warming. After the events of 9/11 scientists recorded a massive increase in solar penetration after flights across the USA were stopped.
Just thought I'd throw my penny's worth in from the top of my head. I've got no official figures or references for any of the above but a quick Google search will point you in the right direction. It's too late for me to do it myself :P