Welcome to Urban Ecology

By David Winslow Nestled among the back alleys of many existing neighborhoods is a large, fallow urban resource. Alleys and backyards, if reclaimed as sites for secondary dwellings, could sustain unobtrusive and affordable new housing with only modest increases in...

Lisa Gartland Scientific data show temperatures in cities all over the world, from Baltimore and Phoenix to Shanghai and Tokyo, are steadily increasing by one half to one degree Fahrenheit every ten years, and the primary cause isn't global warming. Cities -- urban...

I thought I'd take this opportunity to report to you from the front lines of sustainable development. Since September 1996 I've been working with Van der Ryn Architects and the Ecological Design Institute, where we get many opportunities to plan and design using the...

Rebecca Koffman Every day at the Durban Station Market, street vendors do a booming trade selling plant muti (medicine) to the thousands of commuters who pour into the city-center. In this port city, in South Africa's Eastern Province of Kwazulu-Natal, over 700...

Paul Mankiewicz Today's urban estuaries are lined with miles of linear bulkhead and seawall. But just a century ago, they had a highly varied coastline of beaches, marshes, rocky outcrops, bays, cliffs and creek mouths. Where could the immense amount of materials...

by Ron Widenhoeft In Munich, one of Germany’s most attractive cities, political controversy rages over whether the Middle Ring Road needs three new tunnels. By putting heavily burdened segments of the highway underground, advocates promise to enhance safety on the...

By James B. Goodno Not too long ago, cities figured prominently in national politics. As a result, presidential candidates offered urban programs as a matter of course, and public investment flowed into housing, community development, transportation, social...

Investment Firm Backs New Urbanism Columbus Realty Trust, one of the nation's leading real estate investment firms, is backing "new urbanist"-style housing development. Stating that "Columbus is a proponent of 'New Urbanism'," the firm is seeking to invest in...

by Rachel Peterson Texas has witnessed an unusual pattern of development along its 2,000 mile border with Mexico. Colonias are unincorporated, "informal" rural subdivisions that usually lack water, wastewater service, and paved roads. There are an estimated 1,436 such...

Kevin Crooks A century of intensive urban development has destroyed most of the native sage scrub and chaparral habitat in Southern California -- helping to create one of the world's largest epicenters of extinction. Indeed, San Diego has more threatened species of...