Global Warming Dithers

There is dubious graphic proof (?) that global warming is real - but the "sky is falling" reaction is stupid. There is nothing confirming that HUMAN BEINGS are  responsible. Absolutely nothing. Yes, we do send millions of tons of pollution into the air, and yes, it's reasonable to assume that human beings may be causing damage to our atmosphere which may allow more of the suns heat and ultra-violet rays to reach the surface of the earth.  It has not been confirmed by scientific examination. What appears to be global warming is probably not caused by human beings, and leaves a person to conjecture all kinds of other causes: 

• The earth is wobbling on it's axis - which changes (warms?) our climate. 
• Warming and Freezing are natural phenomenons and there is very little we can do about it. 
• Polar ice is melting, the oceans are rising and (if) the entire earth is warming there is still time to determine why - and what we can do about it.