The binding legal principles established are: (1) Under the ESA, a jeopardy recovery analysis cannot rely on a 'trending toward recovery' standard that considers only whether populations are increasing without regard to actual abundance levels, minimum viable populations, or recovery endpoints; (2) The ESA requires that the risk of uncertain mitigation benefits must fall on the project, not the endangered species—agencies cannot rely on achieving precisely the survival benefits needed to avoid jeopardy when those benefits are scientifically uncertain, without building in a margin for error; (3) Mitigation actions may only be relied upon if they are reasonably specific, certain to occur, and capable of implementation, with specific and binding plans and clear commitments of resources; (4) Climate change impacts must be analyzed using best available science, including consideration of additive harms, reduced effectiveness of mitigation measures, and potential catastrophic events; (5) When federal action agencies adopt records of decision implementing BiOp RPAs, they trigger NEPA obligations; (6) A comprehensive or programmatic EIS may be required when multiple actions constitute a single plan, proposal, or are 'connected,' 'cumulative,' or 'similar' actions that should be analyzed together under NEPA.