Philadelphia

Shutterstock.com

People of Color Are Disproportionately Hurt by Air Pollution

New York and Philadelphia top the list of urban areas with great gaps in pollution exposure between whites and non-whites.

Associated Press

The World's Largest Game of Tetris, Played on a Philadelphia Skyscraper

Using 1,400 LED lights.

Shutterstock/Songquan Deng

The Urban Shift in the U.S. Start-Up Economy, in One Chart

Walkable suburbs and center city companies are dominating the tech scene.

Shutterstock

Elevator Music You Actually Want To Listen To

A Philadelphia art installation is rethinking that insipid old Muzak.

The New York Metro's Economy Is Almost as Large as Australia's

How U.S. cities stack up economically worldwide.

REUTERS

And Now, a Late-Winter Reminder to Watch Out for Snow Plows

A GIF to remember the endless snow of 2014. 

Shutterstock.com

When Traffic Congestion Is Both a Great Thing and a Terrible Thing

New research finds that businesses loathe bad traffic at the regional level, but benefit from it locally.

DDOT

Cities, Mapped by Their Snow Routes

Street grids of necessity.

REUTERS

Think Twice Before Asking Police to Deal With the Mentally Ill

"What cops do is arrest people. If you don’t want to be arrested, you probably shouldn’t call the police."

Digital Scholarship Lab

The Quaint Plans for American Cities, as We Envisioned Them 200 Years Ago

New York in 1776, Charleston in 1780, Baltimore in 1801.

Reuters

Can a City Really 'End' Homelessness?

Phoenix says it has among veterans. Next it's aiming for the broader homeless population.

Shutterstock.com

The Forgotten History of How Cities Almost Killed the Common Squirrel

At last, historians have charted the great "squirrel experiments" of the 1800s, which saved the humble creature from urban extinction.

Census Bureau

America's Wealth Is Staggeringly Concentrated in the Northeast Corridor

Median incomes have been growing the fastest, however, in a very different part of the country.

Reuters

Why U.S. Cities Have Been Making it Harder to Feed the Homeless

Los Angeles is the latest city to consider a ban on providing meals to the homeless in public.

Shutterstock

3 U.S. Metro Areas Have Economies Larger Than Sweden

And other eye-popping comparisons.

Flickr/unclepockets

How States Rejecting the Medicaid Expansion Sabotaged Their Biggest Cities

Major urban areas are magnets for the uninsured, and the state politicians who turned down the Medicaid expansion are not the ones who will pay to treat them.

yubm.org

Someone in Philly Is Using Instagram to Intimidate Witnesses

The "stop snitching" movement meets social media. 

Philadelphia Has the Slowest 4G Mobile Broadband in America

Blame Sprint.

Reuters

Cities Are Trying to Fix Their Schools by Luring the Middle Class: It Won't Work

These initatives cannot substitute for reforms that address the root causes of concentrated poverty, budget shortfalls, and failing schools.