Cities and Climate Change: Small Enough to Act, Big Enough to Matter

Shin-pei Tsay calls on urbanists to better communicate the crucial role cities can play in addressing the global challenges of climate change.

Urban Industry Redefined: The Brooklyn Navy Yard

Caitlin Blanchfield looks at how a historic shipbuilding facility is fostering a new culture of industry in New York, one informed by a sophisticated understanding of local dynamics, regional economics, and global challenges.

Undercity: The Infrastructural Explorations of Steve Duncan

Steve Duncan — historian, photographer and explorer — reflects on wastewater infrastructure, underground rivers, and the thrills and urban lessons he's discovered beneath the surface of cities.

Making Connections: Planning for Green Infrastructure in Two Bridges

Kerri Culhane explains how geographical, historical and architectural factors make the Two Bridges neighborhood uniquely suited to realize the environmental, economic and social benefits of green infrastructure.

Seeing Green: Urban Agriculture as Green Infrastructure

Tyler Caruso and Erik Facteau explain their scientific study of the value of urban farms, an effort to produce hard data that can challenge nay-sayers and inform policies and regulations that support agriculture in the city.

What's Your Building Made Of? Perkins+Will's Transparency

Peter Syrett introduces Transparency, an online database of the health effects of building materials, and reflects on architectural responsibility, scientific uncertainty and buildings as instruments of public health.

Profiles of Spontaneous Urban Plants

Landscape designer David Seiter champions the ecological and aesthetic benefits of informal plants - weeds - in urban space, and catalogues the uses and cultural significance of New York's native flora.

City of Systems

City of Systems: Waste Removal

In our final video on complex urban systems, writer Elizabeth Royte offers a snapshot of the past, present and future of what happens to New Yorkers' trash once it leaves the curb.

Gowanus Lowline: Connections

David Briggs and Anthony Deen share the winning designs from the first of a series of competitions that address the challenges of developing contaminated urban areas.