Food waste is a major source of greenhouse gas emissions from landfills due to methane released during anaerobic decomposition.

BuildingGreen-Approved Composters

BuildingGreen approves in-vessel commercial composters, which require the smallest footprint and are most likely to be suitable for a densely populated area.

Why... Read more

Hello, folks! We recently had contact with Northeastern University about sand. I know it sounds ... dry. But sand shortages are a serious issue globally and are leading to criminal activity everywhere and even "sand mafias" in poorer nations without resources to enforce mining laws.

The ask from Northeastern is that BuildingGreen amplify... Read more

If I'm remembering correctly, someone at the summer summit mentioned working on / or being familiar with the Berkeley CA gas ban. A town here in MA is also considering a ban and wanted to get some feedback from Berkeley.

Welcome to the quiz portion of Mind the Gaps: Making Existing Buildings More Airtight!

Learning Objectives
Upon completing this course, participants will be able to:


Identify key performance problems related to leaky building enclosures.

Examine the benefits of making existing buildings more airtight, such as... Read more

Call for Reviewers and Call for Proposals now out.  If you're not planning on submitting a proposal to present, please consider volunteering as a reviewer, subject matter expert or member of the Program Working Group.  The quality of the education program is directly proportional to the people who select it!  

See many of you in Alabama... Read more

Many of you have heard me speak of our foundations effort to host a conference in Houston this November that is focusing on the social and economic side of community resilience preparedness. While we purposely are emphasizing these topic areas, we do see the importance of these conversations being witnessed by the design and planning community... Read more

Hi All -

I have a non-profit project that has a lot of wood structure to it, but the truss suppliers have both said they cannot get FSC wood for the project.

So, looking at the Legal Wood Pilot Credit, I need some help.  Can anyone tell me where i can find the definitions between "legal", "responsible" and "certified" are? (I'm... Read more

Hello Green Gurus,

Here is the information for August's Peer Networks Webinar, A more Mindful Future: mindful MATERIALs plans for Digital Transformation through the Common Materials Framework. We hope you will join us!

Register HERE

A more Mindful Future: mindful MATERIALs plans for Digital Transformation through the Common... Read more

Hello Sustainability Leaders,

Our next First Friday Fika* is tomorrow -- Friday, September 1st at 11am ET (8am PT). We'll meet on Zoom for some lightly structured coffee-chat time. This includes both facilitated sharing and open conversation about the topics you're interested in at the moment. Any Peer Network member who wants to say hi... Read more

A couple questions for this group. I know we're having a Green Commons meeting on this next week. But can anyone comment on the following questions?

-Have you or your firm split the benefit of the 179D with a client? Is this typical?

-Is prevailing wage a requirement for all 179D benefit, or does it follow the same lines as... Read more

I'm wondering if people are seeing any increase in WELL or Fitwel certification interest? Or any other 3rd party systems aimed at health and wellness? WELL seems like a higher bar and now WELL v2 offers more flexibility. Is interest and adoption of 3rd party health and wellness certs growing? 

Hello Green Gurus.

I've been looking into EPDs lately and ran across a few companies with Product Envionmental Profiles (PEPs) which they say are also known as EPDs. Does anyone have any experience with PEPs or know if they actually are EPDs? They reference ISO standards 14040 and 14044 in the writing and ISO 14025 in the list of... Read more

Has anyone here performed circadian lighting studies for WELL using rhino/grasshopper (Lark Spectral Lighting)? 

It seems that Lark can only simulate circadian metrics for daylighting, and NOT electric lighting.  Can anyone shed some light on this?  pun intended :)

Are there any other tools out there that would enable us to... Read more

Lake|Flato is growing our design performance team!  If you know any great applicants for our new design technologist position, please send them our way:

Design Technologist in San Antonio.pdf (lakeflato.com)

An elevator system can account for 4%–10% of a building's electric energy load, without considering impacts on heating and cooling. Conventional finishes are also common.

BuildingGreen-Approved Systems

We approve the most efficient tension elevators from leading manufacturers, including models that incorporate: