Hi everyone, I’m developing the reduction target for scope 3 emissions for our company, and especially in setting a target related to embodied carbon intensity (which is a key item in our plan). However, we have encountered some challenges and I’m trying to work our way through the following questi…

Hi Viki - we at the Port Authority are also thinking our way through baselining embodied carbon and seeing if we can align it with our climate ambitions. I have been looking at the CLF’s low baseline (20th percentile) as a start for embodied carbon for concrete, knowing we’d have excursions for hig…

Hi Viki, I have seen baselines set by studying a handful of existing projects in a company’s portfolio and arriving at a carbon intensity per SF. I’ve seen this in cases where a dominant building type is considered (all commercial, residential, or offices). If your portfolio is diversified, then I’…

Hi Dorian - thanks for sharing your approach for concrete, we are also thinking similar approach to set material specification for key building materials such as steel, rebar and concrete. That’s a very good suggestion and really appreciate it!

Hi Andres - many thanks for the suggestion for baseline! LETI also has a similar benchmark with different bands for dominant building types. Please see embodied carbon target for more information. I just wonder if we use the average carbon intensities as baseline, given our building design (like bui…

That’s a very good point. A concern of mine is whether all these benchmark studies included consistent material categories as part of the scope. For instance, it could be the case that some of the projects included excluded certain categories, such as finishes or building systems. That adds a layer…

Hi @vikitoo I really like @andres 's suggestion to perform a whole building or embodied carbon LCA on a few typical existing assets your company owns. This will give you a true baseline for your actual building portfolio. As Andre’s mentioned, all the benchmarks out there include different scope …

LMN is using this format to compare projects for our internal EC db and assess where we are and where we are going. It is customized to each project based on the boundary of the analysis and the level of detail we are at. There is a more detailed list of what is included in each category and scope l…

I think that is a great approach – it’s critical to identify those boundaries to facilitate comparable data. I also agree with your approach of incorporating an average value to the empty categories for a more robust understanding of the project’s true carbon footprint. I’d be interested in seeing …

Hi Andres, the attached graphic key is not fully baked, but I’d love to get feedback on it. Any and all comments are welcome, feel free to email me directly at kanderson@lmnarchitects.com or let me know if there is already and industry way of comparing model scope. I’d love it if there was some comp…

Thank you for sharing! I am not aware of any existing frameworks that determine the levels of scope in embodied carbon calculations. I will take some time to think through the document you sent and we can sync on feedback. I really like your idea of backfilling gaps with industry data. That will rea…

Questions for scope 3 reduction emission - embodied carbon baseline setting

ScottFarbman (Scott Farbman) March 2, 2022, 5:55pm 13

@Kjell_Anderson - obvious comment, but I think you need some units on your chart.

And an actual range might be helpful. x-y (low to high depending on material selection)

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Questions for scope 3 reduction emission - embodied carbon baseline setting

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