Scientists link excess nitrogen degrading Hawaiian coral to a wastewater treatment plant that injects treated sewage water into the ground. Researchers tracked the changing isotopic ratios of nitrogen in the coral and matched the patterns to changes in the wastewater facility's operations schedule.

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Scientists link excess nitrogen degrading Hawaiian coral to a wastewater treatment plant that injects treated sewage water into the ground. Researchers tracked the changing isotopic ratios of nitrogen in the coral and matched the patterns to changes in the wastewater facility's operations schedule.