Azad Lashkari/Reuters

A week of stories about what we squander, discard, and fritter away: Welcome to the Wastelands.

In “The Metabolism of Cities,” the celebrated sanitary engineer Abel Wolman describes urban areas as living organisms: They guzzle water, energy, and resources and then excrete sewage, garbage, and air pollution. By Wolman’s calculations, each dweller of a hypothetical city of 1 million would be directly or indirectly responsible for 120 gallons of sewage and four pounds of refuse every day.

This was in 1965, when the U.S. population was around 189 million. The Great Lakes were already becoming fouled; the first skein of automotive smog had descended over the skies of Los Angeles. Wolman, correctly, saw trouble ahead. ”As man has come to appreciate that the earth is a closed ecological system, casual methods that once seemed acceptable for the disposal of wastes no longer seemed acceptable,” he wrote. “He has the daily evidence of his eyes and nose to tell him that his planet cannot assimilate without limit the untreated wastes of his civilization.”

I think of this when I check my basement. Several times in recent years, my neighbors and I have found our cellar bathrooms bathed in sewage, thanks to chronic backups in a sewer pipe somewhere deep beneath the street. Baltimore has lately been bedeviled by such backups, the result of decades of deferred maintenance on the city’s less glamorous infrastructure, as well as complications stemming from the intertwining of sewer and stormwater lines (Here’s my colleague Laura Bliss’s CityLab report on the topic; for a truly comprehensive accounting, my former colleague Baynard Woods goes way, way deep into the sewers for the Baltimore City Paper.)

That all this is happening in Abel Wolman’s hometown—indeed, blocks from the university where he taught for several decades during a 75-year career—would probably vex the father of modern sanitary engineering. Wolman devised of a reliable means of water chlorination that conquered typhoid and saved untold millions of lives worldwide. He also helped design and run Baltimore’s water system during the 1930s, when it was the envy of the East Coast, if not beyond. Baltimore lacked proper sewers at all until the early 20th century; after the Great Baltimore Fire of 1904 reduced much of the downtown to ashes, the city embarked on a some far-sighted Progressive-era efforts to update itself, widening streets, burying electrical wires, and beginning the process of building a comprehensive water treatment system—“the finest sanitary Sewerage system in the world,” boasted The Baltimore Book, a early 20th century municipal accounting of its post-fire progress. In those days, decent urban waste disposal was framed in heroic terms—as well it should be.

For most of human history, the city has been a filthy place, and, boy, it doesn’t take much to get that way again. This week, CityLab will be visiting the urban wastelands, from the landfills of New York City to the open sewers of Phnom Penh. We’ll look at the things we leave behind—wasted food, wasted taxpayer dollars, wasted lives, wasted time. And we’ll show how wastelands of all kinds can be reborn. It won’t always be pretty, so dress appropriately. And pack light: We will leave no trace.

The series so far:

The Wastelands of Urban Renewal

“You Made Me. And I'm Coming for You”

Phnom Penh's Canal of Unpleasant Fragrances

The Personal Lives of Forgotten Trinkets

Berlin’s ‘Devil's Mountain': Built From Rubble, And Going to Waste

Hiroshima's Quest to Symbolize Peace, Not Destruction

The Stadiums That Ate Texas

The Wisdom of Garbage

Humanity's Garbage Keeps Piling Up in the Arctic Ocean

The Meaning of Blight

The Wild Comeback Of New York's Legendary Landfill

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