A Case for Measuring Sustainability in Decades, Not in Moments By Thomas L. Ketron I’ve spent more than 20 years around prefabricated concrete building systems — first on the manufacturing side, now working for the broader industry on sustainability initiatives. In that time, I’ve come to believe sustainability conversations are missing a dimension. Today’s dominant framing measures a structure’s environmental performance at a single moment: embodied carbon of the completed project. It’s an important number, but it’s also the easiest one to calculate, and that has let it stand in for the whole conversation. What’s missing is time — how … Read more