Chance encounters with unfamiliar folk are the joy of cities. Be thankful for them, writes @levkushner. trib.al/71sZSIW

Climate change threats are causing some cities to say "no" to developers, per @nytimes nyti.ms/2Xz9HsN

What will happen when SEPTA, the Philly regional transit agency, flips from R to D? @PhillyInquirer @ConservationPA bit.ly/2NLsNY4

There is more than one approach to achieving universal health coverage in the US. Great report by @urbaninstitute urbn.is/32kbnaY

Are federal tax zones just helping the rich to get richer in Pennsylvania? bit.ly/32plM5v @PhillyInquirer @urbaninstitute