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Citiscope is a nonprofit news outlet that covers innovations in cities around the world. More at

In a pioneering experiment in “participatory budgeting,” city residents aged 12 to 25 are invited to come up with ideas for where to spend capital dollars and to vote on those ideas.
Washington, D.C., Kansas City, Nairobi and Mexico City are preparing to launch the "GovCombinator."
How to retrofit housing for earthquakes? Build more housing.
There are two forward leaps in how cities track pollution. One new effort aims to harmonize the many methods cities use for tracking their greenhouse-gas emissions. Meanwhile, London is looking to push the whole field of city emissions tracking to a new level.
For cities switching to greener street lamps, Denmark is the place to look.
Barcelona and Philadelphia are turning procurement upside down.
New technology is helping Los Angeles keep track of its architecture and landmarks.
Finally, observers have clear performance data for comparing cities.