You want to discuss this rationally.. but start off with humanity destroying the earth within 200 years?
Stop.
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1. Climate change is one of the defining issues of our time.
Politicians have needlessly made it so.
2. Humans are changing the earth's climate.
No. You can't prove that at all. No one has been able to thus far. A 50 PPM change in C02 in something that makes up .0039% of the Atmosphere seems slightly ludicrous doesn't it?
We can however show that the Urban Heat Island effect does in fact change overall data. And it's been removed from the latest IPCC reports as an "anomaly," which sounds pretty bogus to me.
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3. The atmosphere and oceans have warmed, sea levels have risen, Arctic ice is declining.
The GRACE program through the University of Texas with a little help from NASA have shown that the changing gravitational field around the Earth has more effect on Sea Level than the theory of man-made global warming. http://www.csr.utexas.edu/grace/gallery/gravity/
C02 Level Changes - Considering how dramatic this NASA created chart is...you'd think we'd be in more trouble if C02 was the actual cause. No need to be an alarmist.
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Arctic Sea Ice VERUS Antarctic Sea Ice! The Ultimate battle!
A new NASA study shows that from 1978 to 2010 the total extent of sea ice surrounding Antarctica in the Southern Ocean grew by roughly 6,600 square miles every year, an area larger than the state of Connecticut. And previous research by the same authors indicates that this rate of increase has recently accelerated, up from an average rate of almost 4,300 square miles per year from 1978 to 2006. Meh.
http://www.nasa.gov/topics/earth/fea...rctic-ice.html
Ocean Temperature changes globally - Since 1969
Hotter by .302 Degrees Farenheit
And don't forget about the Medieval Warming Period! Unless they were all doing some serious industrial shit that we didn't know about...
http://www.co2science.org/education/...ntpath/ch1.php
And the Little Ice Age right after that! (Which actually ended in the mid 1800s.)
I say we launch all nukes. For great justice.