John Metcalfe
John Metcalfe is a staff writer at The Atlantic Cities.
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Videos
A Pair of Nuts Fly Through Rio de Janeiro's Vertical Labyrinth
Extreme-sports enthusiasts Jokke Sommer and Ludovic Woerth take a hair-raising ride through Brazil's urban jungle.
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And the Cities Most in Danger of a Super-Flu Outbreak Are...
Researchers say lethal strains of influenza are most likely to arise next in coastal China, the Nile Delta and elsewhere.
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Photos
What Kind of People Celebrate San Francisco's 'Pi Day'?
People who are very enthusiastic about irrational numbers, it turns out.
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Is This a Good Way to Reinvent the Recumbent Bicycle?
Out of the Netherlands comes this unusual design for a streamlined commuting recumbent.
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This Week in Bans
Moscow Says 'No' To New Mosques
The mayor says citizens are "irritated by people who speak a different language" and have "different manners."
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New York's Green Roofs Are Crawling With Fungi
And the fungal communities are quite different from what's found in the city's parks.
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Toilet Tuesday
Survey Claims That 75 Percent of People Use Cellphones in the Bathroom
One-quarter of men surveyed also reported sitting down to pee so they could use their phones with both hands.
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Maps
Climate Change Is Making Canada Look More Like the United States
The vegetation around Winnipeg now looks as lush as what's growing in Minneapolis, according to a NASA-funded study.
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Finally, a Good Reason to Send Somebody a Photo of Your Genitals
The "STD Triage" app lets you email pictures of your "intimate problem" to a panel of dermatologists.
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Charts
Coal Power Plants Are Killing Thousands in Europe: Report
A look at the health consequences of coal's rising popularity.
