summary

Destroy wetland Marshes may not grow back Vegetation along water sources had gradually vanished Whatever remains turns brown Katrina decrease local sea harvest by two-third More oysters are imported to US A lot of fisherman were unemployed The flood water became contaminated by household chemical , underground gas and oil tanks Leaking sewer and gas pipe also further contaminated by it Dead human and pet further increase the risk of bacterial contamination Placing dredged material for a platform for plants to grow The Louisiana coastal Area ecosystem restoration plan had planned to rebuild barrier island and replant lost marsh grass