Code for Philly was just featured on the White House's blog as part of the President's Climate Data Initiative: http://www.whitehouse.gov/the-press-office/2014/03/19/fact-sheet-president-s-climate-data-initiative-empowering-america-s-comm
Here is the excerpt about the project:
Code for Philly: Using City Buses to Help Monitor Local Climate Change-Related Pollution.
Code for Philly, Code for America’s Philadelphia Brigade, is announcing the development of a new mobile sensor network they aim to run on city buses to gather temperature and pollution data across the city, allowing researchers to track the effects of climate change on and its pollutants in areas across an entire city. This data will be combined with OpenTreeMaps, a platform for crowdsourced tree inventory and urban forestry analysis, to determine the value of trees in combating climate change. The data will also be openly available so developers can incorporate and convey information on local pollution and heat levels in real time to citizens.