Despite concerns about additionality, leakage, permanence, and verification, carbon offsets have been proposed as a core component of recent cap-and-trade proposals in order to contain costs, involve uncapped sectors in GHG reduction goals, and build mitigation capacity in developing countries....

Considerable interest has been expressed recently in prospects for water quality trading markets between nutrient sources in the Chesapeake Bay Watershed. Allowing such flexibility in response to the terms of recently announced total maximum daily load (TMDL) restrictions might considerably...

Recent policy debates suggest that geologic carbon sequestration (GS) likely will play an important role in a carbon-constrained future. As GS evolves from the analogous technologies and practices of enhanced oil recovery (EOR) operations to a long-term, dedicated emissions mitigation option,...