Global warming is the rising average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century, Earth's average surface temperature has increased by about 0.8 °C (1.4 °F), with about two thirds of the increase occurring since 1980. Warming of the climate system is unequivocal, and scientists are more than 90% certain that most of it is caused by increasing concentrations of greenhouse gases produced by human activities such as deforestation and the burning of fossil fuels. These findings are recognized by the national science academies of all major industrialized nations.

Climate model projections are summarized in the 2007 Fourth Assessment Report (AR4) by the Intergovernmental Panel on Climate Change (IPCC). They indicate that during the 21st century the global surface temperature is likely to rise a further 1.1 to 2.9 °C (2 to 5.2 °F) for their lowest emissions scenario and 2.4 to 6.4 °C (4.3 to 11.5 °F) for their highest. The ranges of these estimates arise from the use of models with differing sensitivity to greenhouse gas concentrations.

Stefan Basil Molyneux (born 24 September 1966) is a blogger, essayist, author, and host of the Freedomain Radio series of podcasts, living in Mississauga, Canada. He has written numerous articles and smaller essays which have been published on libertarian websites such as LewRockwell.com, antiwar.com and Strike The Root, recorded over 2000 podcasts, produced over 800 videos, and written several books which are self-published except for his first, which was published by Publish America. In 2006 Molyneux quit his previous job in the field of computer software and works full-time on Freedomain Radio, a philosophical community website which is funded through donations. He self-identifies as a full-time parent and philosopher.

Freedomain Radio is primarily an online podcast, however Molyneux also uses essays, videos, books, articles, interviews, and public speaking to deliver his content. The regular content of the show covers topics such as anarcho-capitalism, ethics, Austrian economics, atheism, religion, education, family, philosophy and politics. Each Sunday Molyneux conducts a call-in show where listeners can talk with him about either a set topic of discussion, or their own. Freedomain Radio also has an online community message board for listeners to discuss Molyneux's content as well as related topics.

George Denis Patrick Carlin (May 12, 1937 – June 22, 2008) was an American stand-up comedian, social critic, satirist, actor and writer/author, who won five Grammy Awards for his comedy albums.

Carlin was noted for his black humor as well as his thoughts on politics, the English language, psychology, religion, and various taboo subjects. Carlin and his "Seven Dirty Words" comedy routine were central to the 1978 U.S. Supreme Court case F.C.C. v. Pacifica Foundation, in which a narrow 5–4 decision by the justices affirmed the government's power to regulate indecent material on the public airwaves.

The first of his fourteen stand-up comedy specials for HBO was filmed in 1977. In 1988, the 1990s and 2000s, Carlin's routines focused on socio-cultural criticism of modern American society. He often commented on contemporary political issues in the United States and satirized the excesses of American culture. His final HBO special, It's Bad for Ya, was filmed less than four months before his death.