The San Diego County Tree Map is a collaboration of nonprofits, local governments, businesses and you to map every tree in San Diego County. Along the way well calculate the environmental benefits the trees are providing -- how many gallons of stormwater they are helping to filter, how many pounds of air pollutants they are capturing, how many kilowatt-hours of energy they are conserving, and how many tons of carbon dioxide they are removing from the atmosphere. The information we gather will help improve municipal oversight for water and air resource management and can offer city managers, arborists, landscape architects and public works directors technical data to better specify and manage trees for our region.