Nature: Climate change takes the blame for many dim future prospects: rising sea levels, more frequent droughts and disappearing glaciers, to name just a few. But perhaps the warming trend should be absolved of responsibility for a predicted bump in the global burden of infectious disease. That’s the bottom line of a paper in the April issue of the journal Ecology, which argues that the geographical ranges of infectious diseases are more likely to shift than to expand (K. D. Lafferty Ecology …