In 2004, GBI began adopting a Canadian web-based tool developed from the Building Research Establishment Environmental Assessment Method (BREEAM) for US commercial buildings. By the end of 2004, GBI released the Green Globes environmental assessment and rating tool into the US market. Green Globes NC 2019 is based on ANSI/GBI 01-2019 Green Globes Assessment Protocol for Commercial Buildings which is under continuous maintenance and contains six environmental assessment areas under its certification program. These areas are Project Management, Site, Energy, Water Efficiency, Materials, and Indoor Environment. One thousand points are available, of which 150 are in the Materials category. The lowest rating threshold is 35% of all applicable points, which must include at least 20% of the points in each category.
There are multiple sections within the Material environmental assessment area that structural engineers can contribute towards to help achieve program points and address embodied carbon. Table 1 summarizes the sections in Green Globes NC 2019 structural engineers can engage in to help their client reach the target project certification level while reducing the structural system’s embodied carbon.