This a short extract from an article that recently appeared with a
link below:
Philadelphia has announced a $1.6 billion plan to transform the
city over the next 20 years by embracing its storm water - instead of
hustling it down sewers and into rivers as fast as possible.
The proposal, which several experts called the nation's most
ambitious, reimagines the city as an oasis of rain gardens, green
roofs, thousands of additional trees, porous pavement, and more.
Like most cities, Phili has an issue when it rains too much. Overflow
"gushes from 164 pipes directly into the Delaware, the Schuylkill, and
Tacony, Pennypack, and Cobbs Creeks. Bacteria levels skyrocket." So,
in looking for solutions to having to pay to treat stormwater and to
deal with overflows of toxic waste, the city has gone away from the
typical route of building new tunnels and massive infrastructure and
instead chosen an incredibly ambitious and incredibly green plan that
will hopefully be followed through on.
http://www.alternet.org/bloggers/www.alternet.org/142985/