Don't be fooled by Sarah Palin and these climate-change skeptics

While former Alaska governor Sarah Palin wrote in her Dec. 9 op-ed that she did not deny the “reality of some changes in climate,” she distorted the clear scientific evidence that Earth’s climate is changing, largely as a result of human behaviors. She also badly confused the concepts of daily weather changes and long-term climate trends when she wrote that “while we recognize the occurrence of these natural, cyclical environmental trends, we can’t say with assurance that man’s activities cause weather changes.” Her statement inaccurately suggests that short-term weather fluctuations must be consistent with long-term climate patterns. And it is the long-term patterns that are a cause for concern.