350 parts per million. That’s the level of atmospheric carbon dioxide beyond which many scientists warn the earth’s climate may begin to spiral out of control. At higher concentrations, they say, heat-reflecting ice sheets will disappear and permafrost will melt, releasing vast amounts of additional greenhouse gases and driving sea levels higher in a vicious [...]
A generation ago, nearly half of all U.S. kids walked or bicycled to school. Today, less than fifteen percent do, with the majority arriving at school in private automobiles. It’s no coincidence, then, that studies show more than a quarter of San Francisco’s children are overweight. But a new program hopes to change that trend, [...]
The first Park(ing) Day was launched by Rebar in 2005, right here in San Francisco. See how San Francisco re-purposed parking spots during Friday's Park(ing) Day 2009.
Despite a blanket of fog, the last San Francisco Sunday Streets of 2009 was, from all accounts, a smashing success, one of the most popular so far, with thousands of people enjoying four activity-filled hours of pristine car-free space through Golden Gate Park and the Great Highway.
Lawrence Ferlinghetti muses about the benefits of a proposed urban park in San Fransisco's historic North Beach neighborhood.
In this Streetfilms look at San Francisco's Market Street we talk to cyclists, advocates, users, planners, and decision makers about what is wrong with the space (and how they might fix it.)
Streetfilms talked with bike commuters on Valencia Street about how re-timing traffic lights to a bike pace would greatly improve their trips.
While on the West Coast in October for the Railvolution Conference, the announcement went out that San Francisco would become the third chapter in the Streetsblog sisterhood. Hip Hip Hooray!
On my recent West Coast Streetfilms swing, I got to jump into the San Francisco Critical Mass dressed as a "bee" (ironically my childhood nickname!) Although we don't often cover alot of critical mass here on our pages, I thought this one would be apropos since it promised to have up to [...]
For two glorious Sundays, San Francisco closed streets along a stretch of its waterfront to cars – and opened them to humanity. A second "Sunday Streets San Francisco" event on September 14th reprised an August 31st street party, both of which saw thousands of people come out to run, skate, cycle, dance, or stroll their [...]