For reasons that are not entirely clear, incidents of elevated temperatures in municipal solid waste landfills are occurring at increasing frequency.  Given the threat to health and property from these elevated temperatures at landfills, the goal of this research is to develop a more complete understanding of elevated temperature landfills.  Tasks for Year 1 include (1) conduct analysis of gas and leachate qualitative and quantitative data, (2) fully characterize Florida landfills experiencing elevated temperatures, and (3) develop a simple heat generation model for each landfill.