“…In the absence of transaction or market hurdle costs, then, the total GHG payments over the lifetime of the project would need to be at least as high as the costs of establishing the forest stand and the forgone agricultural profits over the same time span. For forest management and afforestation projects, these costs are fairly well known and documented in the literature (Galik, Cooley, & Baker, 2012) and are relatively low. For urban forestry and wood products, these costs are unknown, although they would likely involve some infrastructure investment costs.…”