The '''anthropogenic global warming theory''' (AGW) claims that [[human being]]s are responsible for most of the slight [[warming trend]] seen since the [[Little Ice Age]]. It is highly favored by liberals, as it provides justification for [[carbon tax]]es and the [[Kyoto Protocol]]. The consensus of climate scientists, however, is that nearly all of the recent increase in global air temperature is naturally caused.
The AGW theory is one explanation for the 1.5 degrees [[Fahrenheit|F]] of warming of the air near the earth's surface recorded since 1850.<ref>[http://www.cru.uea.ac.uk/cru/info/warming/ Climatic Research Unit Sheet #1]</ref> However, [[Greenpeace]] co-founder [[Patrick Moore]] said [[global warming]] is most likely a "natural phenomenon," because there is no [[proof]] of man-made global warming, and suggested that "[[alarmism]]" is driving politicians to create bad [[environmental]] policies.<ref name=greenpeace>Jonathon M. Seidl. [https://www.theblaze.com/stories/greenpeace-founder-questions-man-made-global-warming/ Greenpeace Founder Questions Man-Made Global Warming], ''[[The Blaze]]'', Posted on January 20, 2011.</ref>