Invasive species, climate change threaten Great Lakes
New book presents long list of dangers but also offers hope
![zebra mussels](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/03/030217_CM_reviews-greatlakes_main.jpg?fit=860%2C460&ssl=1)
BAD NEIGHBORS Zebra mussels (shown) and other invasive species are just one of many threats to the Great Lakes’ ecosystems, as detailed in a new book.
NOAA Great Lakes Environmental Research Laboratory/Flickr (CC BY-SA 2.0)