In the 1970s, we crossed a global threshold when the rate of human demand for natural resources began to outpace the rate at which nature could provide them. How do we know this? By measuring our “ecological footprint” — natural resource consumption as a function of goods and services purchased. Recently SPUR and the Global Footprint Network released a study of San Francisco's ecological footprint.

What would make a morning commute on BART a more enjoyable, engaging and productive experience? Bike repairs? Coffee and snacks? Book clubs? Short films? Spinning classes? Speed dating? These are a few of the playful ideas local art collective REBAR explores as redesigns for BART car interiors in their project you are bART. The piece is part of the inaugural Sister City Biennial exhibition Urbanition…

Work on Senate Bill 375, California's anti-sprawl legislation, continued last month with a joint meeting of the Metropolitan Transportation Commission and Association of Bay Area Governments. The question at hand: Should MTC and ABAG approve a set of five alternative growth scenarios to further analyze? Each scenario includes a set of assumptions about where growth will go, what will be spent on transportation in the region's urban core vs. at its edge, and what tools will be used to change travel behavior and development.

Photo by Karen Chapple Accessory dwelling units — better known as cottages, in-law apartments or granny flats — could provide an estimated 1,000 new residences near selected BART stations, research by UC Berkeley Professor Karen Chapple shows.ADUs diversify and increase the housing stock without enlarging a neighborhood's footprint, while allowing senior citizens to find a smaller dwelling without leaving their neighborhood, or college graduates…