Marshall Cox, the inventor of a simple way to regulate the temperature of a steam-heated apartment, explains how reducing the energy wasted in aging infrastructure can offer new and important approaches to green technology.

In honor of the re-opening of the Statue of Liberty after eight months of repairs following Superstorm Sandy, Peter Lehrer, who managed the ambitious reconstruction of the iconic monument between 1984 and 1986, describes in detail this complex feat of historic preservation.

Tim Maly takes us on a tour of New York City's landscapes of dredge, and explores how the city's past, present and future are shaped by technologies and processes of what he calls "the greatest unrecognized landscape architecture project in the world."

What if sewers no longer overflowed when it rained? Kate Zidar talks about designing for stormwater management and why it is crucial to our health, our waterways and our city.

Vanessa Keith explores some simple yet radical ways to retrofit our urban building stock to address a chief cause of climate change: tropical deforestation.