Since Cambridge, MA is the home of MIT, the city serves as a test bed for many new technologies, for good or ill. As Cambridge is also a famously active political and environmental community, the citizens also start their own initiatives. Here are some of the projects that I know of, an incomplete list I am sure:
solar map of every roof in the city - http://en.mapdwell.com/...
thermal scans of every building -
http://www.sagewell.com/...
Another complete thermal scanning of all the buildings in Cambridge was done by MIT’s Sanjay Sarma
energy analysis of many of the city’s buildings by GreenAnalytix - http://www.greenanalytix.com/...
"Minimal Input Data: Our algorithms require just three easily obtained inputs: GIS, climate, and monthly utility bill data.
"Cloud-Based Energy Modeling: Our cloud-based platform can perform thermal efficiency simulations for millions of buildings in just a few hours.
"Targeting and Scenario Planning: We provide recommendations of buildings to prioritize and which upgrade options are most cost-effective.”
upcoming inventory of all natural gas leaks in Cambridge and Somerville - you can learn more and contribute to this project at
https://www.indiegogo.com/...
extensive online air quality monitoring of MIT’s campus - http://clairity.mit.edu/...
mapping of street greenery, bike accidents, and coffee shops - Media Lab “You Are Here” project
http://youarehere.cc/...
This project has mapped 11 other cities (NYC has the most different data sets)