You are an amazing guy, XFBO.
One of the things that would help is ratifying existing treaties (in other words, rejoining the rest of the Planet, come back in from cloud-cuckoo land where you currently dwell...) and making a big effort to get the people still locked in a kind of numbing idiot haze thats stopping them from thinking to learn a bit about what is going on around them. Small actions carried out by lots of people can have amazing effects.
Fossil fuels are part of the problem, but don't focus ONLY on that. The drop in emissions has been pretty impressive since the early 90's, especially in Europe, but it still has a LONG way to go. Just think, if every car
buyer decided to buy a hybrid, or alternative fuel vehicle as their little part of saving the Planet, the car makers and their little petrol company chums would HAVE to play along, and ultimately prices would drop to cater for a mass consumption item. Look at plasma screen TV's.
I don't care if people smoke whatever they want, as long as there are controls on the amount of nicotene and chemical shit that the Coffin-nail companies can ram into their cancer-sticks. I don't think selling highly addictive cigarettes (and delicious tax-earning products for the "Evil Government"...) is a very ethical thing to do. IMHO.
Sburns, you think our impact on the environment is "vastly overrated".
I really don't think that air bursting atom bombs, over the Pacific, in Siberia, in the Indian Ocean, in Algeria, at White Sands, shit, where-ever, is "vastly overrated", and I think that the Ozone layer and the Earths magnetic fields could just agree with me here.
There have never before been such proliferations of bovine herds, either, creating so much gas...the dinosaurs were bad, but they can't hold a candle to all that farting cattle. The fact that grazing land has been gouged out of the Planets "Lungs" is stupifying in it's blind-leading-the-blind idiocy.
Do a bit of research, if you like, on the King of Spain, and the huge sheep musters that he used to organise in the Middle Ages, for an idea of how idiot Humans and their grazing, farting animals can turn arable land into arid waste.
We won't even touch on all those drums of radioactive waste rotting open in the Marinas Trench, just near the Gulf Stream, or the sheer piles of lethal shit that our "vastly overrated" presence has left as little surprises for hundreds of future generations. Oh, how they will curse us our greedy, shortsighted, blinkered HUGELY EGOCENTRIC nihlism.
BTW, it's not just about Americans, in case you have the wrong idea about my posts....although your consumption of the Planets resources is "vastly underrated"....