• Chicago City Council (find your alderman)
• Elected Officials (state and local) 

• The Planet Newsletter - Sierra Club Activist Resource

• Chicago Wilderness and Magazine

• Forest Preserve District of Cook County

• Forest Preserve District of DuPage County

• Forest Preserve District of Lake County

• Forest Preserve District of Kane County

• Friends of the Chicago River

• Illinois Department of Natural Resources

• Illinois Environmental Protection Agency

• Lake Calumet Wetlands

• Lake Michigan Federation

• Chicago Area Waterways
   

• Select your utility and find out how much pollution your electricity generates each month with the pollution calculator.

Regional Sierra Club Groups on the web:

• Chicago (Chicago & North Shore)

• NorthWest Cook 

• Piasa Palisades (Godfrey)

• Prairie (Urbana)

• River Prairie (Naperville)

• Shawnee (Carbondale)

• Woods and Wetlands (NE IL)

• Valley of the Fox (Fox River Valley)
   

• Dunelands (NW Indiana)

• Great Waters Group (SE Wisconsin)

• River Touring Section (Wisconsin)