Chicago, IL, USA

6000 BCE - present

Chicago is the third most populous city in the United States. This midwest prairie landscape developed rapidly in the mid 19th century, becoming a hub for a growing urban population. Early public works like the Illinois and Michigan Canal, connecting the Great Lakes to the Mississippi River Basin and altered the flow of the Chicago river, allowed for a population explosion, the transportation of goods, and inadvertently contributed to a growing public waste problem. Sitting on the coast of Lake Michigan, Chicago has managed a delicate balance of flowing water since its origins as an American metropolis. The prairie landscape we see today formed through thousands of years of indigenous grazing and intentional burnings. As the city grew, the prairie landscape once home to grazing bison, elk, and deer, started to disappear into agricultural and urban space. Furs, timber, grains, and livestock were traded in one of the nation’s busiest ports increasingly flooded with new residents. Today, Harbor Lock separates the water of Lake Michigan from the Chicago River, however managing the flow is still a difficult feat. As climate change affects the frequency and severity of weather events, flooding has become an increasingly more dangerous issue in the city. Changes in global temperature and precipitation means that Lake Michigan’s highs will become higher, and lows will be lower, threatening more flooded basements, filled roads, and damaged property. Wildlife in the region has also faced its own challenges. Invasive quagga mussels decimate phytoplankton, decreasing the lake’s nutrient level and altering the fragile network of species interactions. Invasive carp are finding their way into the lake despite efforts to restrict access. Leaks and spills from the nearby oil industry severely threaten wildlife and natural habitats. Rare plants like the lakeside daisy and native orchids have suffered the consequence of habitat destruction and pollution. While efforts are being made to restore prairie habitats, climate change, agricultural and industrial pollution, and invasive species threaten this once glorious midwest landscape.

The territory of Chicago falls within the ancestral homelands of the Kaskaskia, Myaamia, Očhéthi Šakówin, Potawatomi, Kickapoo, and Peoria peoples. 

Territorial recognition: https://native-land.ca/.

Most Pressing Issues

Climate Change

Climate Change

Rising global temperatures and changes in precipitation have led to a greater fluctuation in Chicago’s waterways. As Lake Superior’s water level increases, Chicago faces serious threats of flooding. Fluctuations with the canals flow leads to greater difficulty controlling waste and can damage residential property.

Invasive Species

Invasive Species

Quagga mussels are a destructive invasive species that have taken control of the Great Lakes. they control the distribution of food and nutrients throughout waters and affect every level of the food chain. By consuming vast quantities of plankton, the rest of the lake’s inhabitants are left without enough food to survive. Invasive carp are posed to infiltrate Lake Michigan, further decimating native species.

Pollution

Pollution

Agricultural and industrial runoff into Chicago’s canals and Lake Michigan destroy natural habitats and lead to an increase in algal blooms. Changes in climate and invasive mussels also further increase bloom sizes. Pipelines carrying huge quantity of oil frequently spill and leak killing wildlife and damaging property and the surrounding ecosystem.

Development

Development

As the city grows larger and agricultural needs grow greater, more and more land is converted form natural prairie to commercial and residential space. This unique habitat has been chipped away at for years, until little of the rich prairie soil remains.

How You Can Help

Alliance for the Great Lakes

Alliance for the Great Lakes

The Alliance for the Great Lakes is a nonpartisan nonprofit working across the region to protect our most precious resource: the fresh, clean, and natural waters of the Great Lakes.

Learn More about Alliance for the Great Lakes
Chicago Wilderness

Chicago Wilderness

Chicago Wilderness is a regional alliance that leads strategy to preserve, improve, and expand nature and quality of life. By connecting leaders in conservation, health, business, science, and beyond, Chicago Wilderness tackles challenging issues to ensure a resilient region.

Learn More about Chicago Wilderness
Illinois Environmental Council

Illinois Environmental Council

IEC works to safeguard Illinois—its people, its plants and animals, and the natural systems on which all life depends. IEC represents more than 100 environmental and community organizations and nearly 500 individual members from throughout Illinois.

Learn More about Illinois Environmental Council
Openlands

Openlands

Openlands protects the natural and open spaces of northeastern Illinois and the surrounding region to ensure cleaner air and water, protect natural habitats and wildlife, and help balance and enrich our lives.

Learn More about Openlands
Sources:
City of Lake and Prairie: Chicago's Environmental History, edited by Kathleen A. Brosnan, Anne Durkin Keating, William C. Barnett (Pittsburgh, PA: University of Pittsburgh Press, 2020), 66.
Dan Egan, "A Battle Between a Great City and a Great Lake," New York Times, July 7, 2021.
City of Lake and Prairie: Chicago's Environmental History, edited by Kathleen A. Brosnan, Anne Durkin Keating, William C. Barnett (Pittsburgh, PA: University of Pittsburgh Press, 2020), 23.
Joel Greenberg, A Natural History of the Chicago Region (Chicago, IL: University of Chicago Press, 2002), 48.
American Earth: Environmental Writing Since Thoreau, ed. by Bill McKibben and Albert Gore (New York, NY: Literary Classics of the United States, 2008).
William T. Vollmann, "Lewis and Clark on the Edge," New York Times (Sacramento, CA), Nov 21, 2005.
Tony Briscoe, “Lake Michigan has become dramatically clearer in the last 20 years – but at a steep cost,” Chicago Tribune, January 26, 2018.
City of Lake and Prairie: Chicago's Environmental History, edited by Kathleen A. Brosnan, Anne Durkin Keating, William C. Barnett (Pittsburgh, PA: University of Pittseburgh Press, 2020), 106.
City of Lake and Prairie: Chicago's Environmental History, edited by Kathleen A. Brosnan, Anne Durkin Keating, William C. Barnett (Pittsburgh, PA: University of Pittseburgh Press, 2020), 98-99.
Joel Greenberg, A Natural History of the Chicago Region (Chicago, IL: University of Chicago Press, 2002), 29-30.
Michael Homoya, Orchids of Indiana, in Joel Greenberg, A Natural History of the Chicago Region (Chicago, IL: University of Chicago Press, 2002), 27.
Joel Greenberg, A Natural History of the Chicago Region (Chicago, IL: University of Chicago Press, 2002), 22.
"Toxic Algae Bloom in Lake Erie : Image of the Day," Toxic Algae Bloom in Lake Erie : Image of the Day. N.p., n.d. Web, September 19, 2012.
 "Quagga Mussels: 950 Trillion Tiny Time Bombs in Our Lakes? | MLive.com." MLive.com, September 19, 2012.