Yes, President Obama should address climate change. The drastic climate changes in my part of the US proves that global warming is real. The south is generally hot, but it shouldn't be hot all year. Even in the south, 70 degrees in the middle of winter is uncommon. Someone needs to take a stand, and draw more attention to climate changes.
Given the devastation of hurricane Sandy, not to mention the other major disasters linked to climate change, it's time that someone takes a stand and tells the world to do something about it. Who better than the U.S.? It's the idea of leading by example--if we stand up and say that it's a necessary change for the good of our future, then maybe others will follow. If we continue just to talk without doing anything substantial, why would anyone else change?
I think it would be a very good idea for President Obama to host a climate summit. The concern I have will he actually try to get something accomplished or is he trying to make excuses why he keeps bailing out big businesses who are a major cause of the climate change.
I think this would be a great thing for his approval rating in the U.S. The question really is, will President Obama do anything that might be proposed in the summit? Or, are the American people going to continue to pay and bailout every single corporation that has caused climate problems and walked away from them? (i.e. the Auto Industry). He should make the founders of Tesla the keynote speakers.
The US, being the most powerful countries in the world, can and should lead the charge for all things just.
However, even with the best of intentions, any climate summit and deal signed would be, at best, followed only by the countries that pushed the hardest for the deal. Even if the US does all it sets out to do with regards to climate change, we still have Europe, Asia, and Africa to deal with, most of whose countries would not, or could not follow such guidelines.
Even if the US stuck to it's deal, China at the very least would be a major problem, as they are quickly catching up to US energy use, with an even faster growing population.
More simply, why try and go against what nearly the rest of the world is or soon wants to do?