An environmental organization has constitutional right to intervene in public utility proceeding concerning a power purchase agreement. The right to a clean and healthful environment guaranteed by the Hawaiian constitution is a property right that is protected by due process and the utility commission must consider impacts to that right in determining whether to approve a power purchase agreement.

A utility company violated the Clean Water Act when it disposed of coal ash into unlined ponds, which leaked contaminants via groundwater to an adjacent river. The court directed the utility company to excavate the coal ash and move it to a dry lined disposal location.

The National Green Tribunal ordered coal mining and energy companies to implement a series of measures to reduce environmental pollution and health impacts associated with their facilities operating in the Tamnar and Charghoda coal blocks in the state of Chhattisgarh. The Tribunal declared that no expansion of mining or industrial activities in the area could be approved until a thorough environmental carrying capacity study is completed.