Whether the plaintiffs established an injury in fact sufficient for Article III standing.
Holding
No. The members' stated intentions to return to Egypt and Sri Lanka “some day” did not show an actual or imminent, concrete, and particularized injury.
Reasoning
Article III standing has an irreducible constitutional minimum: injury in fact, causation, and redressability. The plaintiff invoking federal jurisdiction bears the burden of proving each element with the degree of factual support appropriate to the litigation stage. At summary judgment, general allegations no longer suffice; the plaintiff must provide specific facts through affidavits or other evidence.
An aesthetic, recreational, scientific, or professional interest in observing endangered species can be legally cognizable. But the plaintiff must personally be among those injured. Here, the relevant affidavits showed only that two members had previously visited the affected areas and hoped or intended to return at an unspecified future time.
Past visits did not establish a present or imminent injury, and a professed intent to revisit “some day,” without concrete travel plans or a date, was too speculative. The Court distinguished cases in which a plaintiff regularly used an affected area or faced a sufficiently immediate threat of future harm.
The plaintiffs' broader “ecosystem,” “animal,” and “vocational” nexus theories also failed. An interest in an ecosystem, a species, or a profession does not automatically create standing to challenge a project harming animals at a distant location. At the summary-judgment stage, plaintiffs needed facts showing a perceptible and impending harm to their own use, observation, or work involving the affected animals or area.