As the least-polluted sites were harvested, so to speak, and green-field financing became easier to obtain, the average time frame for redeveloping a brownfield stretched from three to five years. But the American Recovery and Reinvestment Act of 2009 significantly boosted the amount of funding available for the U.S. EPA's Brown-fields Program - from $86.8 million to $186.8 million - and brownfields are becoming the new green.
展开▼
