So whats the solution if we have all this proof? Hold the US and Europe to different pollution standards then China India and Africa? Oh and plant a tree so I can fly my private jet to Italy for a slice of pizza.
Here's the thing--knowledge that the solutions are hard is indeed what drives people to deny the "inconvenient truth" about global warming. It's like saying that cancer doesn't exist because it's so hard to cure. Global warming can be true and it can also be true that trying to do something about it is not at all easy. Nations don't share land but do share the atmosphere.