The appeals court ordered the Minnesota Pollution Control Agency to reconsider whether any groundwater runoff from the proposed mine would pollute navigable waterways.
The deal marks a positive development for Rio, which is reeling from Serbia's rejection last week of its proposed lithium mine as well as local opposition to projects in Ghana and the United States.
Europe's lengthening list of smelter casualties is a warning sign that power availability poses a fundamental challenge for the aluminum industry globally, writes Andy Home.