Are you truly so ignorant as to not be able to make the connection between the Keystone pipeline and climate change? The keystone pipeline represents a massive investment in fossil fuel infrastructure, at a time when it has become blatantly obvious that the US needs to instead invest in alternate clean energy technology. If the US is to continue to be a leader in technological progress they - as Obama right decided - need to take a bold stand against the entrenched Oil and Coal lobby and reinvest in new energy sources. Does it cost more in the short term? Yes. No matter what, there is going to be a painful and expensive period where we transition away from fossil fuels, but that process has already begun to happen, albeit slowly.
No, it hasn't. Energy use is expanding and will for the foreseeable future, particularly abroad. Moving to electric cars simply means we burn coal instead of oil.
It doesn't have to be that way. If lunatic leftists would quit getting in the way of nuclear power we could have clean, dependable energy.