Many infectious diseases have complex relationships with weather and climate related variables such as humidity, UV, and rainfall. This is especially true of pathogens that have an environmental reservoir. Today an article in Slate magazine has suggested that 2014-2015 might be a significant El Nino year, making extreme weather events more common. The math.epi.lab is investigating the role of climate and environment on the occurrence of food and water-borne pathogens. The prediction that we might expect a significant El Nino year could have important implications for the risk of infectious diseases in North America. Stay tuned for updates from the math.epi.lab. For an overview of projected climate change impacts on infectious disease risk check out our 2008 article in the Canadian Medical Association Journal (CMAJ).