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A double-hulled tanker refers to an oil tanker which has a double hull. They reduce the likelihood of leaks occurring compared to single-hulled tankers, and their ability to prevent or reduce oil spills led to double hulls being standardized for oil tankers and other types of ships including by the International Convention for the Prevention of Pollution from Ships or MARPOL Convention. After the Exxon Valdez oil spill disaster in Alaska in 1989, the US government required all new oil tankers built for use between US ports to be equipped with a full double hull.
The International Maritime Organization is a specialised agency of the United Nations responsible for regulating maritime transport. The IMO was established following agreement at a UN conference held in Geneva in 1948 and the IMO came into existence ten years later, meeting for the first time on 17 March 1958. Headquartered in London, United Kingdom, the IMO, in 2024, has 176 Member States and three Associate Members.
The Lombok Strait, is a strait of the Bali Sea connecting to the Indian Ocean, and is located between the islands of Bali and Lombok in Indonesia. The Gili Islands are on the Lombok side.
The International Convention for the Prevention of Pollution from Ships, 1973 as modified by the Protocol of 1978, or "MARPOL 73/78" is one of the most important international marine environmental conventions. It was developed by the International Maritime Organization with an objective to minimize pollution of the oceans and seas, including dumping, oil and air pollution.
The terms international waters or transboundary waters apply where any of the following types of bodies of water transcend international boundaries: oceans, large marine ecosystems, enclosed or semi-enclosed regional seas and estuaries, rivers, lakes, groundwater systems (aquifers), and wetlands.
The Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter 1972, commonly called the "London Convention" or "LC '72" and also abbreviated as Marine Dumping, is an agreement to control pollution of the sea by dumping and to encourage regional agreements supplementary to the convention. It covers the deliberate disposal at sea of wastes or other matter from vessels, aircraft, and platforms. It does not cover discharges from land-based sources such as pipes and outfalls, wastes generated incidental to normal operation of vessels, or placement of materials for purposes other than mere disposal, providing such disposal is not contrary to aims of the convention. It entered into force in 1975. As of September 2016, there were 89 Parties to the convention.
The International Convention for the Safety of Life at Sea (SOLAS) is an international maritime treaty which sets out minimum safety standards in the construction, equipment and operation of merchant ships. The International Maritime Organization convention requires signatory flag states to ensure that ships flagged by them comply with at least these standards.
A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which forms a redundant barrier to seawater in case the outer hull is damaged and leaks.
Australian Maritime Safety Authority (AMSA) is an Australian statutory authority responsible for the regulation and safety oversight of Australia's shipping fleet and management of Australia's international maritime obligations. The authority has jurisdiction over Australia's exclusive economic zone which covers an area of 11,000,000 square kilometres (4,200,000 sq mi). AMSA maintains Australia's shipping registries: the general and the international shipping registers.
An oily water separator (OWS) (marine) is a piece of equipment specific to the shipping or marine industry. It is used to separate oil and water mixtures into their separate components. This page refers exclusively to oily water separators aboard marine vessels. They are found on board ships where they are used to separate oil from oily waste water such as bilge water before the waste water is discharged into the environment. These discharges of waste water must comply with the requirements laid out in Marpol 73/78.
The environmental impact of shipping include air pollution, water pollution, acoustic, and oil pollution. Ships are responsible for more than 18% of nitrogen oxides pollution, and 3% of greenhouse gas emissions.
Ocean governance is the conduct of the policy, actions and affairs regarding the world's oceans. Within governance, it incorporates the influence of non-state actors, i.e. stakeholders, NGOs and so forth, therefore the state is not the only acting power in policy making. However, ocean governance is complex because much of the ocean is a commons that is not ‘owned’ by any single person or nation/state. There is a belief more strongly in the US than other countries that the “invisible hand” is the best method to determine ocean governance factors. These include factors such as what resources we consume, what price we should pay for them, and how we should use them. The underlying reasoning behind this is the market has to have the desire in order to promote environmental protection, however this is rarely the case. This term is referred to as a market failure. Market failures and government failures are the leading causes of ocean governance complications. As a result, humankind has tended to overexploit marine resources, by treating them as shared resources while not taking equal and collective responsibilities in caring for them.
The International Code for Ships Operating in Polar Waters or Polar Code is an international regime adopted by the International Maritime Organization (IMO) in 2014. The Code sets out regulations for shipping in the polar regions, principally relating to ice navigation and ship design. The international framework aims to protect the two polar regions — the Arctic and Antarctic, from maritime risks. The Code entered into force on 1 January 2017.
Emission control areas (ECAs), or sulfur emission control areas (SECAs), are sea areas in which stricter controls were established to minimize airborne emissions from ships as defined by Annex VI of the 1997 MARPOL Protocol.
Oil Pollution Act of 1961, 33 U.S.C. Chapter 20 §§ 1001–1011, established judicial definitions and coastal prohibitions for the United States maritime industry. The Act invoked the accords of the International Convention for the Prevention of the Pollution of the Sea by Oil, 1954. The international agreement provided provisions to control the discharge of fossil fuel pollutants from nautical vessels on the high seas.
The Oil Pollution Act of 1973 or Oil Pollution Act Amendments of 1973, 33 U.S.C. Chapter 20 §§ 1001-1011, was a United States federal law which amended the United States Statute 75 Stat. 402. The Act of Congress sustained the United States commitment to control the discharge of fossil fuel pollutants from nautical vessels and to acknowledge the embargo of coastal zones in trans-boundary waters.
Marpol Annex I is the first implementation made by Marpol 73/78, one of the most important international marine environmental conventions. The convention was designed to minimize pollution of the seas from ships. The objective of the convention is to preserve the marine environment through the complete elimination of pollution by oil and other harmful substances and the minimization of accidental discharge of such substances. The Marpol Annex I began to be enforced on October 2, 1983, and it details the prevention of pollution by oil and oily water.
Heavy fuel oil (HFO) is a category of fuel oils of a tar-like consistency. Also known as bunker fuel, or residual fuel oil, HFO is the result or remnant from the distillation and cracking process of petroleum. For this reason, HFO is contaminated with several different compounds including aromatics, sulfur, and nitrogen, making emissions upon combustion more polluting compared to other fuel oils. HFO is predominantly used as a fuel source for marine vessel propulsion using marine diesel engines due to its relatively low cost compared to cleaner fuel sources such as distillates. The use and carriage of HFO on-board vessels presents several environmental concerns, namely the risk of oil spill and the emission of toxic compounds and particulates including black carbon. The use of HFOs is banned as a fuel source for ships travelling in the Antarctic as part of the International Maritime Organization's (IMO) International Code for Ships Operating in Polar Waters (Polar Code). For similar reasons, an HFO ban in Arctic waters is currently being considered.
Southeast Asia is home to a diverse marine environment. The region is host to extensive coral reefs, mangroves and seagrass beds, and has even been described as the Amazon rainforest of the ocean. The region is estimated to contain approximately 35% of the world’s mangrove species and over 45% of the world’s seagrass species.. The shipping industry has multiple damaging impacts on marine habitats and wildlife, such as pollution from port actives, oil spills ballast and bilge discharge, waste dumping from ships and direct physical impact from grounding and anchor damage.
Environmental maritime crime constitutes one of the key components of the broader domain of blue crime, and it describes and includes activities that detrimentally impact the marine environment. Its effects have had extremely deleterious impacts on marine life, both in terms of affecting marine ecosystems and the life quality of coastal citizens, with damages that are often not reparable.
References
- ↑ "International Convention for the Prevention of Pollution of the Sea by Oil, 1954". The Center for International Earth Science Information Network (CIESIN), Earth Institute, Columbia University. Archived from the original on 17 April 2019. Retrieved 15 April 2017.
- ↑ "IMO / English / Our Work / Marine Environment / Pollution Prevention / Oil Pollution / Background". International Maritime Organization. Archived from the original on 6 April 2019. Retrieved 15 April 2017.
- ↑ "Oceanic Grandeur, Torres Strait, 3 March 1970 - Australian Maritime Safety Authority (AMSA)". Australian Maritime Safety Authority. Archived from the original on 16 April 2017. Retrieved 15 April 2017.