A New Jersey scientist has invented a system that uses ultrasound and filters to kill invasive species in ballast water.

State and federal agencies joined forces to remove 167,000 cubic yards of toxic mud from the bottom of the Kinnickinnic River, on Milwaukee’s south side.

Increased disease surveillance identified two new fish pathogens that could affect the $7 billion Great Lakes fishery.

Steel bulkheads that prevented fish from finding food or shelter have now been replaced with natural shore habitat and a park for the community.

Restoration efforts are helping control the invasive weed Phragmites, and allowing native plants and wildlife to return, including bald eagles.

Federal Great Lakes restoration funds restored two miles of shoreline and habitat along Muskegon Lakes, allowing fish, turtles, shorebirds and waterfowl to return.

Funding from the Great Lakes Restoration Initiative is restoring a native prairie and marsh ecosystem to Chicago’s Northerly Island in Lake Michigan to provide habitat to native fish and wildlife, and an outdoor recreation space in the city for people.

What was once a heavily commercialized site has now been restored to a natural state, with the entrenched creek liberated, native trees and shrubs planted, and a six-acre wetland created.