Stories from around the Web that we're reading this morning. Something for everyone.

1. Philly could be the new model for marijuana decriminalization. It's largest city in the country to have fully decriminalized recreational use of cannabis. NextCity.org

2. How gentrifiers change the definition of a neighborhood. New research out of Philadelphia finds race to be the biggest predictor of how residents defined their changing communities.  CityLab.com.

3Drexel researchers track 'cyber fingerprints' to identify programmers In addition to aiding law enforcement, the tool could be used to settle copyright and plagiarism disputes. Newsworks.org

4. Global is the new local: Why China's pollution could be behind our cold, snowy winters. "Over the past 30 years or so, man-made emission centers have shifted from traditional industrialized countries to fast, developing countries in Asia." NASA.gov / NPR.org