; (B) take such action as the Administrator determines necessary to create a coastal or marine blue carbon ecosystem storage offset that, taken in conjunction with the proposed action, results in a long term net increase in carbon storage, lasting an equivalent time period as the carbon storage lost by the adverse impact; (C) demonstrate quantitatively, using the best available science, that the carbon storage offset will result in a net increase in ecological carbon storage and is located in close proximity to the original site to keep the affected communities whole; (D) maintain such carbon storage offset for a period of time to be determined by the Administrator but not less than 100 years