London

Reuters

The People and Places Behind England’s Summer Riots

A new report examines social and physical factors behind August's violent protests

Reuters

The Limits of Congestion Pricing

It may be the best solution to city traffic, but that doesn't mean it's a perfect one

Reuters

Could London Become the Tech Capital of Europe?

The city used to struggle to keep its start-up talent. Not anymore

Reuters

Reducing Air Pollution With ... Glue?

Adhesive sprayed onto London streets aims at cutting particulate levels

Foster + Partners

London's Proposed Thames Hub Airport Could Be the World's Biggest

Foster + Partners' ambitious plans for a £50 billion airport in the Thames Estuary

Kieran Doherty / Reuters

A Legacy of Security in Olympic London

2012 Games will bring with it an even broader surveillance infrastructure

Andrew Winning / Reuters

Surveillance Technology and the Modern Protest

The ability to identify people from even short clips of video is rapidly improving

Suzanne Plunkett / Reuters

Chelsea Soccer Fans Hold on to Their Team, For Now

Fans-turned-shareholders vote down initial plan to sell their stock for a larger stadium

Flickr/MoyanBrennBackFromPrague

Paying for Public Parks

Thanks to huge budget shortfalls, cities often have no choice but to charge for use of public spaces

Andrea Comas / Reuters

How Many Trees is Enough?

When it comes to reducing pollution, the key isn't the number of trees you plant but where you plant them

Reuters

The Only Hope for Reducing Traffic

A new study makes the fundamental case for congestion pricing

Thermal Cities/Steve Lowe

CAT Scans for Cities

Researchers are using thermal imaging to diagnose energy efficiency in the built environment

Flickr user: "raindog" under a Creative Commons License

Civic Symbolism: A Survey of City Hall Architecture

Which city hall buildings manage to capture something specific about a city's culture?

Payton Chung

Cutting Car Use at the Neighborhood Level

8 European projects show how design and planning can reduce automobile dependence

Flickr user: brunosan, under a Creative Commons license

The World's Best Subway Maps

20 mass transit maps worthy of hanging on your wall

Reuters/Tony Melville

One Downside to Bicycle Commuting: Biker's Lung

London bike commuters found to breathe in more soot than pedestrians

2010 File photo Associated Press/The Philadelphia Inquirer

Are Violent 'Flash Mobs' Really a Trend?

After two summers in a row of disturbing group violence in cities like Chicago and Philadelphia, authorities look at the intersection of technology, poverty, and race

Yuriko Nakao, Reuters

The 25 Most Economically Powerful Cities in the World

Most of the world's capacity for economic growth is centered in its metro areas. Which cities top the list?