It’s likely 18 months to two years before the state starts selling carbon credits. Several unknowns remain.

Two Interior tribal groups oppose the Alaska Department of Fish and Game expansion on the Lower Tanana River. Program leader Tom Seaton says he has high hopes for long-term growth.

The decision could affect any federal agency decision challenged in court, including those related to fisheries, resource development and the environment.

The court declined to rule on whether correspondence allotments could be used at private schools, sending the question back to a lower court.