Global Warming: Challenging the “Settled” Science

In December of 1997, political leaders gathered in Kyoto, Japan to contemplate a world treaty restricting human production of “greenhouse gases,” in particular carbon dioxide (CO2). They worried that CO2 would result in a severe and sudden increase in earth’s temperatures, leading to environmental disasters on a global scale. According to the Intergovernmental Panel on Climate Change (IPCC), the preeminent body for the assessment of climate change, humans are responsible for the majority of global warming since 1900, including virtually 100% of the warming since 1970 (IPCC, 2007b, p. 39).
In the years since Kyoto, there have been major efforts to bring about worldwide agreement to the treaty, including a recent climate summit—much publicized for its failings—held in Copenhagen. But not everyone is going along with the IPCC. Despite a continuing maelstrom of media hype and alarmist politics, the idea that the earth is warming at an unprecedented rate, due primarily to human influence, is quickly losing ground. This global warming backlash is due in large part to a growing chorus of skeptics and climate experts willing to challenge the prevailing science at the core of the movement.
Over 31,000 scientists, including over 9,000 PhDs, have raised concerns over the IPCC’s findings. They have signed a petition stating that the organization’s claims are extreme, that the climate system is more complex than what is now known, and that various mechanisms have not yet been included in the models considered to date (Idso & Singer, 2009, p. 739). They have argued that the whole issue should be treated with caution and that we should not jump headfirst into incorrect environmental policies that could be extremely damaging to the economy.
Records do show that since the year 1900, global surface temperatures have risen by