WIRED ScienceCould San Francisco Get the Oil Industry to Pay for Climate Change?
When a raindrop falls in San Francisco, it has two choices: flow east into the San Francisco Bay, or west into the Pacific Ocean. A ridgeline divides the city into two, slicing through the Presidio, hugging the eastern edge of Golden Gate Park, and skirting Twin Peaks. As the land drops off in either direction, the elevation difference doesn’t just drive raindrops downhill—it also moves human waste.
