Julian Spector

Julian Spector/CityLab

What I Learned Installing Solar Panels

It was easier than I thought.

Julian Spector

Tokyo's Olympic Bet on Hydrogen Power

The city is spending big money to make fuel cells affordable. Is that the right way to cut carbon?

Reuters / Carlo Allegri

The Rise of Resilience Planning

As the 100 Resilient Cities initiative reaches its namesake goal, the group’s president reflects on challenges and successes thus far.

AP Photo / Robert Ray

Nuclear Power Fights for a Spot in Illinois' Clean Energy Future

State lawmakers are debating whether to keep ailing nuclear plants alive. The outcome will set a precedent for more states to come.

Mark Byrnes, Flickr/Jason Lawrence, Paul Sullivan, NYbuspics

How to Clean Up the Dirtiest Vehicles on the Road

Personal cars get most of the attention, but trucks and buses are long overdue for an efficiency upgrade.

Statoil

Scottish Seas Will Host the World's Largest Floating Wind Farm

Energy company Statoil plans to get things running by the end of 2017.

AP Photo / Steven Senne

What It Would Take to Stop Invasive Pests From Destroying Millions of U.S. Trees

It would require changing the way we conduct global trade.

Reuters/Arko Datta

A Brainstorming Session to Save the World

With the goals finally agreed on, this year’s COP22 climate conference will turn to finding solutions.

Reuters / Mike Blake

These States Don't Want You to Get Solar Power

High legal barriers in 10 states make it especially difficult to put solar panels on rooftops.

AP Photo / Charlie Neibergall

Local Governments Are Paying the Price for Global Trade's Effects on Trees

The emerald ash borer hitched a ride overseas on wooden shipping crates. Now it’s eating into municipal budgets.

AP Photo / David J. Phillip

It's Time for Cities to Get Serious About Flood Detection

Amid heavy flooding, Houston’s Texas Medical Center showcases what can be done with current technology.

Groundswell

Where America's Poor Pay the Most for Electricity

Poor families face persistent obstacles to cutting their power bill.

Flickr / Mike Linksvayer

Another Reason to Love Urban Green Space: It Fights Crime

A new body of evidence suggests that adding greenery in vacant or gray settings reduces criminal activity nearby.

Mick49 / Shutterstock.com

Why Transit Agencies Are Finally Embracing Uber

Increasingly, public transit is viewing mobility startups as partners, not competition.

Elena Elisseeva / Shutterstock.com

Want Solar Panels on Your Roof? Here's What You Need to Know

A handy reference for navigating an emerging industry.

Reuters / Jonathan Ernst

Cities Speak Up to Save Obama's Clean Power Plan

A large coalition of U.S. mayors and local governments is coming to the EPA’s defense in the legal battle to cut carbon emissions from power plants.

Diego Tenorio

Life in an Abandoned Mexican Town Foreshadows a World of Rising Waters

The three families that stayed in San Marcos show how to cope with the collapse of a city.

James Rossant / Palindrome

Why Reston, Virginia, Still Inspires Planners 50 Years Later

A new documentary traces how the D.C. suburb’s pedestrian-centric, mixed-use approach came to dominate urban design.