Wall Street Journal: The picture that emerges of prominent climate-change scientists from the more than 3,000 documents and emails accessed by hackers and put on the Internet this week is one of professional backbiting and questionable scientific practices. It could undermine the idea that the science of man-made global warming is entirely settled just weeks before a crucial climate-change summit. Researchers at the Climatic Research Unit at the University of East Anglia, England, were victims of a …