An ASPiRE team led by Todd Combs combined geospatial data on residential and tobacco retailer density in our CAB cities and found that a large majority of urban residents live in tobacco swamps – neighborhoods where there is a glut of tobacco retailers. Their study, published in Health & Place, simulated the effects of tobacco retail reduction policies and compared probable changes in resident-to-retailer proximity and retailer density for each city. They found that tobacco retailer density and resident-to-retailer proximity are highly correlated and that for maximum impact, policy changes should be tailored to the local context and the existing built environment for tobacco. Co-author Veronica Chaitan gave a preview of the paper at the CAB meeting in Minneapolis. Read the paper.