Democratic governors and President Donald Trump agree to fight an invasion of non-native fish that has spread up the Mississippi River and threatens the Great Lakes.

The blooms have become an annual problem in the Great Lakes. DNA studies show what’s growing there and why it’s dangerous.

The risk of harmful algal blooms can be reduced. The biggest drivers of the increase are farm fertilizer and climate change.

Scientists have assessed more than 23,000 species.

Ancient fossil footprints are the first evidence of two different hominin species − Homo erectus and Paranthropus boisei − living in the same place at the same time.

Portable paddleboards can transport unwelcome passengers – here’s how to minimise the risk of spreading invasive and non-native species between waterways.

A study of "lake-smoke days" show that wildfires reached 99% of US lakes from 2019 to 2021, a three-year period of intense wildfire activity.

In winter 2023-24, the Great Lakes’ ice cover was near record lows, peaking at just 16%. Researchers explain how diminishing ice could have consequences for fisheries, and how species are evolving.

New research shows increased rainfall due to climate change is threatening the birds’ food supply.

Mapping where water once flowed is important for managing flood risk today in Detroit and elsewhere.