There are only a few topics that seem less obvious but more hotly debated than climate change. It's here, it's happening, it's caused by humanity, and it is one of the largest problems humanity will ever face. But I believe we will face it, and we'll face it with the desperate ingenuity and bravado with which we have faced our entire history on this planet. And we will survive it, as long as we can finally freaking agree that "it" isn't a conspiracy theory made up to annoy the rich and powerful.
So, as I know this is a hotly debated subject, this video has sources...
CO2 greatly amplifies warming after it is initiated: http://www.skepticalscience.com/co2-lags-temperature-intermediate.htm
After 1975 there was little connection between solar activity and the earth's temperature: http://www.mps.mpg.de/dokumente/publikationen/solanki/c153.pdf
Indeed, if it were the sun, we should be cooling: http://rspa.royalsocietypublishing.org/content/464/2094/1387.abstract
Detailed look at how the urban heat island affect is removed from climate science data: http://pubs.giss.nasa.gov/docs/2001/2001_Hansen_etal.pdf
Satellite measurements show warming trends as well as surface measurements: http://www.globalwarmingart.com/wiki/Image:Satellite_Temperatures.png
Ice core reconstructions show the same thing: http://www.ncdc.noaa.gov/paleo/globalwarming/pollack.html
The earth is not cooling: http://www.agu.org/pubs/crossref/2011/2011GL048794.shtml
The myth of the 70's Cooling Consensus: http://ams.confex.com/ams/pdfpapers/131047.pdf
Loss of Antarctic Land Ice: http://dx.doi.org/10.1126/science.1228102
Melting land ice results in increase in sea ice: http://www.nature.com/ngeo/journal/v6/n5/full/ngeo1767.html
For a great resource on this stuff: http://www.skepticalscience.com/
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