There's evidence that man can have caused it.
There's zero evidence of this being a natural change.
... No, really.
None of the historic changes match the current change. None of the reasons for the historic changes are relevant to this change. And none of the historic changes had the temperature increase lag behind the CO2 increase, the way we are currently seeing. Historically, the CO2 increase began 800 years after the temperatures started rising.
Howcome those who do not believe in global warming will readily dismiss the data in favor but then use the data showing that the earth has cycles... Its litterally on the same freaking graph...
If both ice caps completely melt the worst that will happen to California is the valley will probably flood.
Not only does the Earth's climate depend mostly on the sun for it's phases, it's also constantly changing and has been for since it began.
The thought that our paltry amount of CO2 is controlling it is just a HUGE SCAM!
The scientific community has always been divided on it. And few of the predictions have panned out, and there's been no real warming for over 10 years.
The liberal orthodoxy still adheres to it, but that's because the proposed "solution" of everything from carbon credits, to shutting down western economies is a way to make them rich while forcing an economic collapse and replacing the economy with communism or socialism. That's pretty much the leftist dream. So they use mob tactics to shout down anyone who disagrees and calls them "deniers".
Great starter vid on it:
http://www.youtube.com/watch?v=YtevF4B4RtQ
There's more and more news reports also, just search for "hide the decline" and check here too:
http://www.globalclimatescam.com/
If I recall correctly massive solar farms tend to wind up in areas where the ground has a similar albedo to the solar panels anyway.
---------- Post added 2012-05-03 at 08:54 PM ----------
68 meters is the projected coastal rise. I think that makes my apartment beach front.