Just a quick back of the envelop calculation on what the residents City of Chicago consume each year:
Population: 2,836,658
Average calories/ day: 2,000
Days in a Year: 365
Total calories/ year: 2,070,760,340,000
So that is about 2 trillion. Not sure what that means, but we have to figure out how we get most of that here from within or immediately around Chicago if we want to lower our carbon foot print.
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