Showing posts with label Green Building. Show all posts
Showing posts with label Green Building. Show all posts

Thursday, October 29, 2009

Recycling the Recycling Business Model


Is recycling just a feel-good exercise in America?

Wild swings over the past few years in the demand for recycled waste material has presented a challenge for communities attempting to promote universal recycling and a rational for communities who are hostile to the very idea of recycling. I hear stories all the time about recycled material "piling up" outside of town because of a weak buyer's market, and I've read about instances where excess recycled stock is periodically hauled off to the landfill. At the same time, manufacturers and contractors use far less recycled material than they could as most stock is too difficult to locate and identify. Who has the time to look for something that may not even be available?

Here's a proposal: Why not set up a national database for recycled materials? The effectiveness of such a structure would hinge upon being comprehensive in nature. This could take the form of a government agency or an industry-funded consortium - take your pick - and it should cover all products, all grades of materials, and all locations withing the US.

A comprehensive database of available material open to all potential buyers will be a big step in closing the environmental loop and making recycling economically feasible in the US.

Tuesday, September 8, 2009

LEED Rating System: Panacea or Smoke Screen?

New LEED Silver university dormitories

Over the past few years, the LEED (Leadership in Energy and Environmental Design) rating system by the USGBC (US Green Building Council) has become the most recognized public symbol of green building in the US.

Since its inception in 1993, the USGBC has contributed monumentally to public awareness of green building issues, and the LEED rating system is a good-faith attempt to certify the level of sustainability in a building, but LEED - as is - has some fatal flaws. Did you know that a building can be awarded a LEED Silver Certification while using more energy than the average building or without addressing any of the local climatic conditions? A building in Alaska would not be disqualified for being a carbon copy of a building in Florida - as long as the credits add up.

Problem is, LEED is a checklist, and a clever designer can find enough check marks to gain a certification without really making a fundamental change in the way buildings are designed. (A contractor representative of a local LEED Silver project recently came by my sustainability class and presented the building. The visit got them a point on the checklist necessary to make Silver. Great! But does it make the building any greener? Turns out, the building in question looks conspicuously just like the last conventional energy-hog-of-a-building designed by that architect.)

LEED is a rating system, and no substitute for a thorough understanding of the "principles" of Sustainability. LEED should reflect sustainability, not the other way around.

Here's a good article from New York Times about LEED rating shortfalls.