Editing Urban Metabolism (section)

== <span style="color: #FFFFFF;">Understanding</span> ==
Urban metabolism is understood through '''Flows''' and '''Cycles'''.

'''1. The "Hungry" City (Linear Flows)''':
Most modern cities are "Resource Parasites."
* They "Take" "Food and Fuel" from thousands of miles away.
* they "Burn it" and "Consume it."
* They "Dump" "Smoke and Trash" into the atmosphere and landfills.
* The city "Lives" by "Eating the Planet."
* This is a "Linear Path" to "Depletion."

'''2. The "Self-Sustaining" City (Circular Cycles)''':
The "Future City" mimics a "Forest."
* A "Forest" produces "No Waste." The "Leaves" that fall become the "Soil" for the next tree.
* **Urban Metabolism** seeks to "Close the Loops."
* **Heat** from "Data Centers" is used to "Heat Homes."
* **Food Waste** is turned into **Biogas** to "Power Buses."
* The city becomes a "Circle" that "Recycles its own Life."

'''3. The "Urban Mine" (Stocks)''':
We don't need to "Mine the Earth" anymore.
* An "Old City" contains "Millions of Tons" of "Copper," "Aluminum," and "Steel" in its "Dead Pipes and Cables."
* This is the **Urban Stock**.
* Instead of "Digging new holes in the ground," we can "Mine the City."
* "Urban Metabolism" treats the "City" as a "Living Reservoir" of materials.

'''The 'Brussels' MFA Study (1970s)'''': The "First Big Map" of a city's metabolism. Scientists tracked **Every Single Ton** of "Milk," "Coal," and "Water" that entered Brussels and where it went. It proved that a "City" is a "Giant Machine" that is "Incredibly Inefficient" and "Leaky," starting the "Green City" movement.
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