Climate Warming/Cooling or whatever

What is causing the alleged climate change/warming that the radical left claims is happening?  Is it the automobiles, power plants or maybe, just maybe it is the volcanos that are pumping more pollution into the air that we could not produce in our lifetime.  But don’t just believe me, listen to what those scientist that monitor volcanos say.  And it is not just the two volcanos we see on the news today.  Of course, it has been reported that all pollution going into the air will cool the climate this winter.  But we cannot blame the volcanos, we must again blame global warming, AKA climate change.  How else is Al Gore going to make a living or President Obama going to enrich his friends who are into solar power and windmills, AKA alternative energy.