Medieval Warming

http://www.rushlimbaugh.com/home/daily/site_021510/content/01125109.guest.html

Claim: The world was warmer in medieval times than now -- suggesting global warming may not be a man-made phenomenon

False: There is no evidence that the world was warmer in medieval times than now (http://www.grist.org/article/the-medieval-warm-period-was-just-as-warm-as-today/). Though I hasten to add that I wouldn’t deny that we have gone through cycles of warming and cooling in the past that were in fact natural cycles, therefore the real issue that needs to be addressed here is natural cycles vs. man-made phenomenon.

This article addresses the issue of natural vs. man-made climate change (http://www.grist.org/article/current-global-warming-is-just-part-of-a-natural-cycle/). Natural changes have indeed happened but, this article asks the deniers to show proof that this current change is indeed being affected by natural causes. Of course this would go against scientific consensus that warming is occurring and is man-made. The conclusion is that CO2 emissions from human activity are affecting global temperatures.