Dirty bunker fuel literally comes from the bottom of the barrel and is more than 1,000 times dirtier than the diesel fuel used in trucks and buses. This fuel pollutes the air, threatens human health, and causes global warming. Now, an accident has led to the release of this toxic fuel into the San Francisco Bay -- demonstrating the risks that its use poses for marine life. Friends of the Earth's Clean Vessels campaign is calling on Congress to require a complete phase-out of bunker fuel use. Please sign our petition below.