Living Spaces, Philadelphia: Outside the Old, Inside the New
The ubiquity of Philadelphia's historic rowhomes belies a city teeming with 21st-century architecture.
The 100K House: How a Philly Startup is Trying to Change the Green Housing Industry
Postgreen means to make green living affordable with its 100K House, and in the process hopes to redefine how we build homes--and how we live.
Burning Off the Fat: Philadelphia Fry-O-Diesel Makes Biofuel From Useless Sludge
How a small startup working out of a makeshift lab in North Philadelphia is aiming to transform the biodiesel industry--and the way we think about alternative fuels.