USA Today: This summer’s stifling, deadly heat along the Eastern Seaboard and Deep South could be a preview of summers to come over the next few decades, according to a report about global warming to be published Wednesday by the National Wildlife Federation and the Asthma and Allergy Foundation of America. In fact, according to NWF climate scientist Amanda Staudt, the summer of 2010 might actually be considered mild compared with the typical summers in the future. “We all think this summer is …