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[水煮经管] Exxon Valdez oil spill [推广有奖]

21
剑行天下802399 发表于 2017-7-10 11:07:32
Because Prince William Sound contained many rocky coves where the oil collected, the decision was made to displace it with high-pressure hot water. However, this also displaced and destroyed the microbial populations on the shoreline; many of these organisms (e.g. plankton) are the basis of the coastal marine food chain, and others (e.g. certain bacteria and fungi) are capable of facilitating the biodegradation of oil. At the time, both scientific advice and public pressure was to clean everything, but since then, a much greater understanding of natural and facilitated remediation processes has developed, due somewhat in part to the opportunity presented for study by the Exxon Valdez spill. Despite the extensive cleanup attempts, less than ten percent of the oil was recovered and a study conducted by NOAA determined that as of early 2007 more than 26 thousand U.S. gallons (98 m3) of oil remain in the sandy soil of the contaminated shoreline, declining at a rate of less than 4% per year.[26][27]

22
jlong0923 发表于 2017-7-10 11:16:59
According to official reports, the ship was carrying 53.09451 million US gallons (1,264,155 bbl; 200,984.6 m3) of oil, of which about 10.8 million US gallons (260,000 bbl; 41,000 m3) were spilled into the Prince William Sound.[1][8] An approximate figure of 11 million US gallons (260,000 bbl; 42,000 m3) was a commonly accepted estimate of the spill's volume and has been used by the State of Alaska's Exxon Valdez Oil Spill Trustee Council,[3] the National Oceanic and Atmospheric Administration and environmental groups such as Greenpeace and the Sierra Club.[5][9][10]

23
wangdanli 发表于 2017-7-10 16:16:00
Multiple factors have been identified as contributing to the incident

24
kakasreg 发表于 2017-7-10 16:30:38
Multiple factors have been identified as contributing to the incident

25
1602520922 发表于 2017-7-10 16:54:36
Multiple factors have been identified as contributing to the incident

26
柏瓜 发表于 2017-7-11 10:12:36
According to official reports, the ship was carrying 53.09451 million US gallons (1,264,155 bbl; 200,984.6 m3) of oil, of which about 10.8 million US gallons (260,000 bbl; 41,000 m3) were spilled into the Prince William Sound.[1][8] An approximate figure of 11 million US gallons (260,000 bbl; 42,000 m3) was a commonly accepted estimate of the spill's volume and has been used by the State of Alaska's Exxon Valdez Oil Spill Trustee Council,[3] the National Oceanic and Atmospheric Administration and environmental groups such as Greenpeace and the Sierra Club.[5][9][10]

27
sinocallfyz 发表于 2017-7-11 10:24:32
Captain Joseph Hazelwood, who was widely reported to have been drinking heavily that night, was not at the controls when the ship struck the reef. However, as the senior officer, he was in command of the ship even though he was asleep in his bunk. In light of the other findings, investigative reporter Greg Palast stated in 2008, "Forget the drunken skipper fable. As to Captain Joe Hazelwood, he was below decks, sleeping off his bender. At the helm, the third mate never would have collided with Bligh Reef had he looked at his RAYCAS radar. But the radar was not turned on. In fact, the tanker's radar was left broken and disabled for more than a year before the disaster, and Exxon management knew it. It was just too expensive to fix and operate." [14] Exxon blamed Captain Hazelwood for the grounding of the tanker.[13]

28
QQ芬 发表于 2017-7-11 10:25:29
Captain Joseph Hazelwood, who was widely reported to have been drinking heavily that night, was not at the controls when the ship struck the reef. However, as the senior officer, he was in command of the ship even though he was asleep in his bunk. In light of the other findings, investigative reporter Greg Palast stated in 2008, "Forget the drunken skipper fable. As to Captain Joe Hazelwood, he was below decks, sleeping off his bender. At the helm, the third mate never would have collided with Bligh Reef had he looked at his RAYCAS radar. But the radar was not turned on. In fact, the tanker's radar was left broken and disabled for more than a year before the disaster, and Exxon management knew it. It was just too expensive to fix and operate." [14] Exxon blamed Captain Hazelwood for the grounding of the tanker.[13]

29
TOWER001 发表于 2017-7-11 10:48:59
Multiple factors have been identified as contributing to the incident

30
vegetable03 发表于 2017-7-14 20:05:15
Property tax in the United States[size=12.880000114440918px]From Wikipedia, the free encyclopedia
[size=12.880000114440918px]

Most local governments in the United States impose a property tax as a principal source of revenue.[1] This tax may be imposed on real estate or personal property. The tax is nearly always computed as the fair market value of the property times an assessment ratio times a tax rate, and is generally an obligation of the owner of the property. Values are determined by local officials, and may be disputed by property owners. For the taxing authority, one advantage of the property tax over the sales tax or income tax is that the revenue always equals the tax levy, unlike the other taxes. The property tax typically produces the required revenue for municipalities' tax levies. A disadvantage to the taxpayer is that the tax liability is fixed, while the taxpayer's income is not.

The tax is administered at the local government level. Many states impose limits on how local jurisdictions may tax property. Because many properties are subject to tax by more than one local jurisdiction, some states provide a method by which values are made uniform among such jurisdictions.

Property tax is rarely self-computed by the owner. The tax becomes a legally enforceable obligation attaching to the property at a specific date. Most states impose taxes resembling property tax on vehicles registered in the state, and some states tax some other types of business property.



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