Scott Ungerer, founder of EnterTech Capital in 1996, has long known what the rest of us are just realizing: eventually we'll have to quit the hydrocarbon economy for something else.
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.
A growing class of workers is shrugging off allegiance to a single company and striking out on their own as freelancers. The result is a new way of working marked by an intensely creative entrepreneurial spirit.