John Flesher

Enbridge describes it as essential for reliable oil supplies in both nations, saying the plan has undergone rigorous environmental permitting and will boost Minnesota's economy. Opponents contend it endangers waterways, violates indigenous treaty rights and abets dependence on fossil fuels that will further overheat the planet.

A federal judge has ordered a government agency to take a closer look at pipeline company Enbridge's plans for dealing with potential oil spills in the waterway connecting Lakes Huron and Michigan.

Fortifying an Illinois waterway to prevent invasive carp from using it as a path to Lake Michigan could cost nearly three times as much as federal planners previously thought, according to an updated report.

President Donald Trump wants to eliminate federal support of a program that addresses the Great Lakes' most pressing environmental threats.