EurekAlert: Global warming is likely to reduce the health of tropical species, scientists from UCLA and the University of Washington report May 6 in Proceedings of the National Academy of Sciences. At the same time, a little bit of warming may actually move certain organisms, particularly insects, in the high latitudes closer to their optimal temperature, the researchers say. “In the tropics, most of the organisms we have studied, from insects to amphibians and reptiles, are already …