Urban Forest Map
The Urban Forest Map is a Google Map application that is trying to map every tree in San Francisco.
One aim of the map is to 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.
Using the map it is possible to search for trees near any location in San Francisco. You can find trees that bear edible fruits and nuts or those with beautiful flowers. You can also search the map for trees of a particular type.
Looking at the map you can see that the Urban Forest Map already has a huge database of trees in San Francisco but if you know of one that is missing you can add it to the map.