After searching some interesting facts on renewable energy to share, I stumbled upon this article from last year.
Article (A quick look at the charts and numbers will give you the basic information)
Reading this article made me realise how far we still have to go. I knew we were far from there, but reading that only 1.6% (in 2011) of the total energy production was from renewables, was still drasticly lower than I anticipated. This actually made me change my mind somewhat as to what the germans are doing. They will have lots of difficulties on achieving their goal, meet a lot of challenges and will probable solve loads of them, clearing up the road for other countries to follow in their footsteps. Maybe not tomorrow, but in 10, 20 or 30 years, when other countries follow the german example, they will have knowledge of the dangers ahead.
Personally I think that the US should do an extra effort and invest some of the money that goes into their (oil?)-wars into renewables. As they have a population density that is 3.5 times smaller than in europe, they have space enough to implement these changes.
As for Africa and South-America, I think they would invest if they could. But as they have been stripped by their own resources by Europe and America they have another evolution to go through.
As for China, they are still polluting heavily, but I think it’s just a matter of years until they are the lead in every sector of renewable energy (Which the graphics actually all show) and will improve on their environmental care.