I personally think that the whole global warming thing is often exaggerated or used to create new business opportunities. Especially my government is a driving force in this.
I tho do support the idea of having 99%-recycleable products, meaning you produce things you can recycle and dont have to throw major parts of it away.
Regarding sustainable energy sources, I dont think its a bad idea either, especially from the PoV of new business opportunities. The states having a median of 2200 wind energy hours / year are a perfect ground for converters; in comparism Germany has like only 1200 h / a .
I am personally tho no fan of electric cars. They not only suck and aint cool, they are, and you all know the debate, much more inefficient than a small diezel engine ( regarding the electric power has to be produced somewhere else, which leads to new emissions and draining of ressources ). I know from my studies at University that there will be oil on this planet for the next 400 years. And thats only the known fields. It will be a problem if China and india for example will reach western wealth standards, but that still doesnt make it better to build electric cars than small diezel engines.
I think the whole global warming debate wouldnt be a debate at all, if everyone from the start would try to have a sustainable or recyceable production and watch it that he doesnt interfere with its natural environment to much at all.
the sumit in Copenhagen on climate change I personally think more had the idea to create something big, under which all nations unite. Something like a federation of planets like in StarTrek. It wasnt really only about having everyone agree with the no-more-hotter-than-3-degree-celsius idea in the end.
I found it sad that it failed so hard. And especially Obamas behaviour was very irritating, who first of all was all for anti-global warming ideas and and backed up europeans with their ideas, then had a chat with the chinese and then left the sumit saying there are more pressuring things for him to do.
That was just a bad show.