Schmitt contends that scientists "are being intimidated" if they disagree with the idea that burning fossil fuels has increased carbon dioxide levels, temperatures and sea levels.
"They’ve seen too many of their colleagues lose grant funding when they haven’t gone along with the so-called political consensus that we’re in a human-caused global warming," Schmitt said.
Dan Williams, publisher with the Chicago-based Heartland Institute, which is hosting the climate change conference, said he invited Schmitt after reading about his resignation from The Planetary Society, a non-profit dedicated to space exploration. Schmitt resigned after the group blamed global warming on human activity. In his resignation letter, the 74-year-old geologist argued that the "global warming scare is being used as a political tool to increase government control over American lives, incomes and decision making."
Williams said Heartland is sceptical about the crisis that people are proclaiming in global warming.
"Not that the planet hasn’t warmed. We know it has or we’d all still be in the Ice Age," he said. "But it has not reached a crisis proportion and, even among us skeptics, there’s disagreement about how much man has been responsible for that warming."
Schmitt said historical documents indicate average temperatures have risen by 1 degree per century since around 1400 A.D., and the rise in carbon dioxide is because of the temperature rise. (Source: news.bostonherald.com)