Was anyone else surprised to see ASHRAE 228-2023 using eGRID Subregions for both the Regional Electricity Source Energy Conversion Factor and Regional Electricity Greenhouse Gas Emission Factors? In the past I have used eGRID sub-regions but also State and local utility conversion factors depending on what energy or operational carbon story I... 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

Fellow SCLers,

This is a small ball item, but I recently had a conversation with a safety glove manufacturer called Traffi. They make PPE, but in particular they have a line of gloves that they promote as carbon neutral. Their organization's operations are offset with retired RECs, but one line of their gloves, LXT, is offset by a... Read more

Hi all,

For your planning purposes for next year, here’s info on an in-person event coming up in 2024:

We are excited to announce that we will be hosting an all-peer-networks workshop for SMEPL, SDL, and SCL members at Miller Hull’s office in Seattle on July 15, 2024. We’re still working out the details, but given the recent... Read more

Has anyone worked with Vidaris for LEED certification and have a contact there? If you want to direct email me with feedback on the experience that would be helpful as well.

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

Hi All,

I wanted to share a program of superstars including many of you.  I look forward to electronically connecting and learning together.

Every Monday from June through August, the Boston Society for Architecture (BSA) and the Carbon Leadership Forum (CLF) Boston Hub will present Embodied Carbon 101, a 12-part program series in... Read more

Though BuildingGreen has long supported the use of electric hand dryers as a more environmentally friendly hand drying option, the majority of evidence appears to support paper towels as a preferred method of controlling the spread of potential pathogens. 

And even the most efficient hand dryers contribute significant CO2 to the... Read more

Sustainability leadership has requested that you take this quiz to help assess sustainability literacy across the firm. Your own results will be presented to you at the end of the quiz but will not be shared with anyone else. Only aggregated, anonymized results will be available to others.

Please don’t do research to inform your answers... Read more

With depth of thought and a broad view of the horizon, Candace Pearson can take a nuanced vision and sharpen it into focus, propelling the team around her forward. Operating in all three of BuildingGreen’s service offerings—publications, consulting, and peer networks—she finds pragmatic ways to fundamentally shift how we create our built... Read more

Hi Gang, 

We are looking to implement the contractor commitment and are running into COVID-19 protocol barriers when looking at the Jobsite Wellness category specific to the soap as well as the food storage/eating areas on site. Anyone else run into this issue? 

-Kena 

It’s here! By popular demand we’re re-running the SDL Salary Survey that we last ran in 2015. 

This is for people who are currently in an SD Leader role at a firm. We’re sending this invitation out on both the Green Gurus and the SD Leaders forums, because some of you are still in transition and haven’t moved into the SD Leader forum yet... Read more

Were we given any warning that LEED Online and USGBC.org would be down for a week?  

In trying to help a client write a case study on avoided carbon by using slag and flyash, I am having trouble finding a one for one equivalency that can be verified.

I have found for one pound of flyash, one pound of carbon is saved - but I can't verify that.

Appreciate the feedback!

Dear all,

A mechanical engineer on a healthcare project we are working on has asked for help in dividing the ventilation calculations between ASHRAE Standards 170 and 62.1; can anyone here help shed some light on it?

"This is the first time I am working on LEED for a hospital and I am not sure how the template wants me to show... Read more