Not the same thing
Environmental consulting
is not sustainability consulting
The two get used interchangeably and they are different disciplines, with different questions, different deliverables and often different people in the room.
Environmental consulting, here, is the regulatory reporting: Tier I and Tier II, TRI, and the state and federal waste summaries. It is about obligation. Did the filing go in, was it right, and can it be defended.
Sustainability consulting starts where compliance ends. What could this operation do beyond what it is required to do, what is that worth, and how is the result evidenced. The measure is whether the target was real and whether it moved.
KODA does both, and they are scoped separately, because an operation with a deadline to meet and an operation with a diversion target to hit need different work.