We used the EPA's WARM software for the Pentagon Renovation's Construction Waste Management program. We were able to calculate a 177 percent GHG diversion from a no recycling scenario. While the software doesn't factor in a lot of conventional building products (it focuses on materials like OCC, plastics, wood waste etc.), there was enough to work with to make some valid estimates.
From: Rod [mailto:firstname.lastname@example.org]
Sent: Thursday, January 20, 2005 10:11 AM
Subject: [greenyes] Megatons reduced by recycling
Imagine one ton of standard mix of recyclable items
coming out of a home fiber, metal, glass etc.
I understand that using recycled vs. virgin material saves approximately 75% of the energy used in virgin production of this mix.
I anyone aware of the actual reduction in megatons of GHG's involved
Waste Diversion Toronto/Canada