Safeguarding the Seas
Stopping the pollution of our oceans by ships and fast ferries and preventing deadly collisions with whales

Ship Pollution Across the Ocean

Air pollution from all ocean-going vessels in U.S. waters is expected to grow by 150 percent over the next three decades. A single cargo ship coming into New York harbor can release as much pollution as 350,000 current-model-year cars in one hour. In the Ports of Los Angeles/Long Beach, the 16 container ships each day in port produce as many smog-forming emissions as one million cars. In one port visit, a single cruise ship generates the emissions of more than 12,400 cars.

These ship smokestacks release toxic emissions that lead to acid rain, global climate change, and damaging health effects to low-income communities situated near ports. Far greater than previously estimated, a 2003 study has found that large ships generate 30 percent of global nitrogen emissions – twice the previous estimates of 14 percent. The ships also produce 16 percent of sulfur emissions from all petroleum sources.

Port communities suffer the most from the diesel exhaust emitted by ships, where elevated cancer risk has been documented. Residents of Los Angeles and Long Beach, for example, experience higher cancer risk from diesel exhaust generated by the ports. Even in Santa Barbara, which does not have a commercial port, smog emissions from ships that blow onshore are larger than those produced by all cars and trucks on land. This pollution can reduce air quality hundreds of miles inland depending on wind and weather patterns.


Dirty Fuels and Lack of Adequate Air Pollution Controls
Despite the fact that ships are more energy efficient than other forms of commercial transportation, marine engines operate on extremely dirty fuels. Most large ships use the dirtiest and least expensive diesel available. Known as bunker oil, this fuel is the collection of residue from the production of higher grade fuels and contains significant concentrations of toxic compounds banned from use in most other industrial and consumer applications. It is thick as asphalt and must be heated to be burned.

To compound the problem, engines on ocean-going ships are currently not required to meet the same strict air pollution controls as cars and trucks are required to do. These engines are inadequately regulated in the U.S. and the international shipping treaty on shipping pollution that entered into force in May 2005 – but which the U. S. had not ratified -- provides minimal benefits as the standards simply codify the status quo. This is true due to the weakness of the standards, the growth of global shipping, and the emissions reductions being gained in other mobile source categories. After Bluewater Network called for stronger international standards at the International Maritime Organization, the Marine Environmental Protection Committee agreed in July 2005 to consider stronger international standards contained in Annex VI of MARPOL (the Convention on the Prevention of Marine Pollution from Ships).


EPA Lawsuit
Bluewater Network settled a ground-breaking lawsuit against the U.S. Environmental Protection Agency that required the agency to set air emission standards for ocean-going vessels, which were finalized in January 2003. However, influence from the Bush Administration resulted in new rules that will not provide any air emissions reductions. Bluewater Network challenged the standards in court. However, a judge ruled that EPA was within its authority to delay more stringent standards until 2007 or later. Bluewater Network is continuing to advocate for stronger engine and fuel standards to apply to both domestic and foreign-flagged ships stopping at US ports and for establishment of Sulfur Emissions Control Areas along the North America coasts.


Solutions
Burning cleaner diesel fuels in port can significantly reduce air emissions from ships. Turning off the engines and hooking up to shoreside power and the electrical grid when docked reduces smokestack emissions by nearly 100 percent. New engine technologies can also make ships far, far cleaner than today’s engines. These solutions are feasible and available, but won’t be implemented until communities, policymakers and regulators join forces to advocate for immediate action and seek accountability for the impact on public health and the environment from ports and the shipping industry. Bluewater Network is working for change at the local, state, national and international level.

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What can be done to reduce shipping pollution?

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Did you know that pollution from ships may account for half the sulfur emissions found over the world's oceans? Read our report "A Stacked Deck" for more information.

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