Wired: Climatologists studying the effects of an increase in global temperatures have said that disease spread may rise in a warmer world. In Science, Sonia Altizer describes work over the last decade that attempts to tease the effects of climate change away from other major factors like poverty. In many cases, the solution is to look to the natural world, which is unencumbered by these factors. Altizer points to students of parasites and pathogens that affect monarch butterflies, reindeer and corals...