The Aftermath of Hurricane Katrina:

The economic effects of the storm were far-reaching. As of April 2006, the Bush Administration has sought $105 billion for repairs and reconstruction in the region, and this does not account for damage to the economy caused by potential interruption of the oil supply, destruction of the Gulf Coast's highway infrastructure, and exports of commodities such as grain. Katrina damaged or destroyed 30 oil platforms and caused the closure of nine refineries; the total shut-in oil production from the Gulf of Mexico in the six-month period following Katrina was approximately 24% of the annual production and the shut-in gas production for the same period was about 18%.[68] The forestry industry in Mississippi was also affected, as 1.3 million acres (5,300 km²) of forest lands were destroyed. The total loss to the forestry industry from Katrina is calculated to rise to about $5 billion. Furthermore, hundreds of thousands of local residents were left unemployed, which will have a trickle-down effect as fewer taxes are paid to local governments. Before the hurricane, the region supported approximately one million non-farm jobs, with 600,000 of them in New Orleans. It is estimated that the total economic impact in Louisiana and Mississippi may exceed $150 billion.
Katrina redistributed over one million people from the central Gulf coast elsewhere across the United States, which became the largest diaspora in the history of the United States. Houston, Texas, had an increase of 35,000 people; Mobile, Alabama, gained over 24,000; Baton Rouge, Louisiana, over 15,000; and Hammond, Louisiana received over 10,000, nearly doubling its size. Chicago received over 6,000 people, the most of any non-southern city. By late January, 2006, about 200,000 people were once again living in New Orleans, less than half of the pre-storm population. By July 1, 2006, when new population estimates were calculated by the U.S. Census Bureau, the state of Louisiana showed a population decline of 219,563, or 4.87%. Additionally, some insurance companies have stopped insuring homeowners in the area because of the high costs from Hurricanes Katrina and Rita, or have raised homeowners' insurance premiums to cover their risk.
Katrina also had a profound impact on the environment. The storm surge caused substantial beach erosion, in some cases completely devastating coastal areas. In Dauphin Island, approximately 90 miles (150 km) to the east of the point where the hurricane made landfall, the sand that comprised the barrier island was transported across the island into the Mississippi Sound, pushing the island towards land. The storm surge and waves from Katrina also obliterated the Chandeleur Islands, which had been affected by Hurricane Ivan the previous year. The US Geological Survey has estimated 217 square miles (560 km2) of land was transformed to water by the hurricanes Katrina and Rita.
The lands that were lost were breeding grounds for marine mammals, brown pelicans, turtles, and fish, as well as migratory species such as redhead ducks. Overall, about 20% of the local marshes were permanently overrun by water as a result of the storm.
The damage from Katrina forced the closure of 16 National Wildlife Refuges. Breton National Wildlife Refuge lost half its area in the storm. As a result, the hurricane affected the habitats of sea turtles, Mississippi sandhill cranes, Red-cockaded woodpeckers and Alabama Beach mice.
Finally, as part of the cleanup effort, the flood waters that covered New Orleans were pumped into Lake Pontchartrain, a process that took 43 days to complete. These residual waters contained a mix of raw sewage, bacteria, heavy metals, pesticides, toxic chemicals, and about 6.5 million U.S. gallons (24.6 million L) of oil, which has sparked fears in the scientific community of massive numbers of fish dying.
Prior to the storm, subsidence and erosion caused erosion in the Louisiana wetlands and bayous. This, along with the canals built in the area, allowed for Katrina to maintain more of its intensity when it struck.
Shortly after the hurricane moved away on August 30, 2005, some residents of New Orleans who remained in the city began looting stores. Many were in search of food and water that were not available to them through any other means, as well as non-essential items.
Reports of carjacking, murders, thefts, and rapes in New Orleans flooded the news. Some sources later determined that many of the reports were innaccurate, because of the confusion. Thousands of National Guard and federal troops were mobilized (the total went from 7,841 in the area the day Katrina hit to a maximum of 46,838 on September 10) and sent to Louisiana along with numbers of local law enforcement agents from across the country who were temporarily deputized by the state. "They have M16s and are locked and loaded. These troops know how to shoot and kill and I expect they will," Louisiana Governor Kathleen Blanco said. Congressman Bill Jefferson (D-LA) told ABC News: "There was shooting going on. There was sniping going on. Over the first week of September, law and order were gradually restored to the city." Several shootings were between police and New Orleans residents, including a fatal incident at Danziger Bridge.
A number of arrests were made throughout the affected area, including some near the New Orleans Convention Center. A temporary jail was constructed of chain link cages in the city train station.
In Texas, where more than 300,000 refugees were located, local officials ran 20,000 criminal background checks on the refugees, as well as on the relief workers helping them and people who opened up their homes. The background checks found that 45% of the refugees had a criminal record of some nature, and that 22% had a violent criminal record.The number of homicides in Houston from September 2005 through February 22, 2006 went up by 23% relative to the same period a year before; 29 of the 170 murders involved displaced Louisianans as a victim or as a suspect.

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