I hope colleagues who saw almost the same post on the blog I contribute to at work don’t mind a repeat. I’m winging it a bit as I hold a two-day-old little girl in my left arm and type on her mom’s Mac with my right.
This post can be taken as reassurance that there are pockets of people here and there working to make the world greener for my grandkids and yours. It originates with Jim Robbins, Yale Environment 360, part of the Guardian Environment Network.
He begins in Seattle.
” ‘The biggest threat to Puget Sound is non-point sources [of pollution],’ says Nancy Ahern, Seattle Public Utilities deputy director.
“Blowhole samples taken from killer whales have revealed fungi, viruses and bacteria living in their respiratory tracts, some of them antibiotic-resistant and once found only on land. Health officials often have to shut down oyster beds because of fecal contamination. Salmon in streams are killed by torrents of dirty storm water.
“To lessen this deluge of diffuse pollution — a problem faced by many regions worldwide — Seattle is looking not at new and expensive sewage treatment infrastructure. Instead it is embracing an innovative solution to storm water runoff called green infrastructure … A growing number of places, from New York City to Sweden, are investing in everything from rooftop gardens to pollution-filtering assemblages of trees to reduce tainted runoff.
“Gray infrastructure is the system of pipes and ditches that channel storm water. Green infrastructure is the harnessing of the natural processes of trees and other vegetation — so-called ecosystem services — to carry out the functions of the built systems. Green infrastructure often intercepts the water before it can run into streets and become polluted and stores the water for gradual release through percolation or evapotranspiration. Trees also clean dirty water through natural filtering functions. …
“A 2012 study by American Rivers, ECONorthwest, and other groups examined 479 projects around the country. About a quarter of the projects were more expensive, they concluded, and 31 percent cost the same; more than 44 percent brought the costs down, in some cases substantially. New York City, for example, expects to save $1.5 billion over the next 20 years by using green infrastructure.” I call that having your cake and eating it, too.
More.
Photograph: Mike Di Paola/Getty Images
Plants grow on a rooftop farm in Greenpoint, New York.
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