The Great Lakes are the largest body of fresh water in the world. This is a review of the award-winning book, Death and Life of the Great Lakes, by Dan Egan.
The pristine Great Lakes had always been isolated from other bodies of water, but all this changed with the building of canals in the 1800s. Then in 1959 the Saint Lawrence Seaway opened. This is a riveting account of what has happened to the Great Lakes and other lakes in the United States and Canada since the Great Lakes became an avenue of world commerce and transportation.
Death and Life is a must read for individuals that care about the quality of our water, fishermen and women, and every environmental decision maker. I was thrilled my local book club picked it to read, and excited when the New York Times/PBS Book Club chose it as well.
The author, Dan Eagan, a reporter for the Milwaukee Journal Sentinel, has thoroughly researched and interviewed many of the decision makers and citizens involved. Why did they make the decisions they did? I was surprised how many of them were still living to tell their stories and defend their decisions. He has put their stories together to tell an interesting narrative.
Why would species from the Black Sea and Caspian Sea thrive in Lake Michigan? We have learned so much during the past thirty to fifty years about invasive species. I remember how surprised I was when I first learned about invasives. A new world opened! The learning curve has been steep for us, and even if you don’t read this book I encourage you to read about invasive species to learn the harm they do. Eagan delves into the sea lamprey, alewives, zebra mussels, coho salmon, Asian carp, and others that have thrived in this new environment, the Great Lakes, without any predators to control their numbers. Then there are the native lake trout that are native to the lakes, but they are too boring??
Fascinating was the Great Black Swamp that filtered run-off and helped keep Lake Erie clean. Like so many of the wetlands and swamps of the past, our ignorance couldn’t understand their purpose, so drainage began and we have new fertile farmland. Today the farm run-off creates the perfect conditions for toxic algae blooms threatening the drinking water taken from Lake Erie. Interesting stories continue as Egan interviews farmers, and those working to mitigate the effects of farm run-off.
The summer of 2017, a very rainy summer on Lake Superior, I was surprised by reports that for the first time Lake Michigan had better water quality than Lake Superior. The high water level of Lake Superior and the run off from the streams had caused a rusty-brown lake. You will have to read Dan Eagan’s book to discover why Lake Michigan now has cleaner water, and if this is a good thing?
Dan Egan leaves me hopeful. I think he believes, as do I, the earth is capable of healing itself to some extent if left alone to find its ecological balance. It is hopeful that Lake Huron has begun to heal, and that the white fish are adapting to eat zebra mussels. I hope a 10 year sequel is on the writing-table soon.
And finally a quote from the book, “A thing is right when it tends to promote the integrity, beauty and stability of the biotic community.” Aldo Leopold
A link to Dan Egan’s appearance on the PBS NewsHour:
https://www.pbs.org/newshour/show/great-lakes-author-dan-egan-answers-your-questions
Health4earth 