After months of stalemate, glimmers of hope have emerged for consensus on a new plan to manage the shrinking Colorado River.

Negotiators from the seven river basin states said in a series of meetings in recent weeks that they were discussing a plan rooted in a concept that breaks from decades of management practice. Rather than basing water releases on reservoir levels, it would base the amount released from the system’s two major reservoirs on the amount of water flowing in the river. The new concept would be more responsive as river flows become more variable.