Des Moines Register: Iowa teachers may be split on how to educate students about climate change despite strong scientific evidence of human-caused climate change, an IowaWatch survey with the Cedar Falls High School Tiger Hi-Line newspaper shows. Students also have mixed opinions on the subject, the survey showed. Results of the survey of 133 science teachers from 54 public and private schools and one Area Education Agency in Iowa are anecdotal because the sample was not large enough to demonstrate a trend. But they...