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Objective science is critical to understanding the relative impacts of the many putative causal agents in the global coral reef crisis. This paper provides an evidence-based scenario of causality leading to the current state of reef degradation. Contrary to revisionist narratives that emphasize the local-scale effects of fishing and nutrient loading, coral populations were and are degrading primarily due to regional-to global-scale factors. Most important among these large-scale factors are disease outbreaks and coral bleaching, both of which are related to climate change. Because policy recommendations and management strategies will differ depending on which cause(s) are perceived to exert the greatest influence, scientists must be explicit about when they are acting as advocates and when they are objectively conveying scientific results. Legitimate scientific debate is healthy and in no way diminishes the goal of creating cogent policy. Forced ideological unification, in contrast, risks obfuscation, undermining the scientific process. Science must move forward unfettered by political expediency; however, the situation is dire enough to warrant immediate action on local, regional, and global levels, based on the best scientific information at hand, in parallel with continuing research. [ABSTRACT FROM AUTHOR]