Both hurricanes and typhoons refer to tropical cyclones with wind speeds exceeding 33 m/s, but they have different names because of different regions. Strong tropical cyclones generated in the northwest Pacific Ocean and the South China Sea are called "typhoons"; It is generated in the Atlantic Ocean, the Caribbean Sea and the eastern North Pacific Ocean and is called a hurricane. Usually accompanied by strong winds and heavy rains. More than a third of the oil fields near the Gulf of Mexico were forced to close.

The whole area affected by Hurricane Katrina in the United States is almost as large as that of Britain, and it is considered as one of the most disastrous natural disasters in American history. Seven refineries and an important crude oil export facility in the United States also had to be temporarily closed. The price of the New York Mercantile Exchange crude oil soared 4.67 dollars to 70.8 dollars a barrel at the opening on August 29th. In Atlanta, the price of gas stations is $5/gallon higher. On August 3 1, the Bush administration agreed to use the strategic oil reserve to help the seriously damaged crude oil processing plants resume production. On September 2, the International Energy Agency announced that all 26 member countries agreed to put 2 million barrels of crude oil into the market every day for 30 days to help solve the market tension caused by Hurricane Katrina. New york crude oil futures prices fell sharply that day. A day after Louisiana declared a state of emergency, Bush declared a state of emergency in Mississippi on August 28th.

Eighty people were killed in Harrison County, Mississippi. At least 2 18 people died in Mississippi, 423 in Louisiana, 2 in Alabama and 0/4 in Florida. At least 2.3 million residents in Mississippi, Louisiana, Alabama and Florida were affected by power outages. In addition, it also caused a large-scale communication failure. On August 30th, the three major stock indexes of new york stock market fell across the board because investors were worried that the hurricane would bring huge losses to the US economy. In some cities, even 90% of buildings were destroyed. Bush said that it will take several years to fully recover to the pre-disaster level.