“The data show that the current warming is not unusual, but part of a natural cycle,” says this article by Jonathan DuHamel.
“Greenhouse gases, other than water vapor, are not significant drivers of climate,” says Duhamel. “Human emissions of carbon dioxide are insignificant when compared to natural emissions of greenhouse gases. Many predictions by climate modelers and hyped by the media are simply wrong.”
“There is no physical evidence showing that human carbon dioxide emissions have a significant effect on global temperature,” DuHamel continues. “Carbon dioxide is vital to life on earth and current atmospheric levels are dangerously low. Political schemes to cut greenhouse gases will have no measurable effect on temperature but will greatly harm the economy by impeding energy production and use.”
“The graph (above), based on reconstruction from the geologic and historical records, shows that there have been several warm/cold cycles since the end of the last glacial epoch,” explains DuHamel.
“The temperature during the Holocene Climate Optimum was 3ºF to 10ºF warmer than today in many areas. This is warmer than the extreme scenarios of the IPCC. Clearly, current temperatures are neither unprecedented nor unusually warm.”
See all of this great article, including more graphs:
Thanks to Burt Rutan for this link
Here’s a link to more charts showing temperatures warmer than today during the Medieval Warm Period. It also contains charts showing the Roman Warming, the Mid-Holocene Warming, and several more warming periods during the last half-a-million years.
So much for “unprecedented” global warming.
Thanks to Burt Rutan for this link, too.