Natural Environment Essay

Submitted By Trent-Colman
Words: 375
Pages: 2

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
,
[88]
pushing the island towards land.
The storm surge and waves from Katrina also obliterated the
Chandeleur
[89]
Islands
, which had been affected by Hurricane Ivan the previous year.
The US Geological Survey has
2
estimated 217 square miles (560 km
) of land was transformed to water by the hurricanes Katrina and
[90]
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
.[81]
Overall, about 20% of the local
marshes
were
[81]
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
[91]
lost half its area in the storm.
As a result, the hurricane affected the habitats of
sea turtles
, Mississippi
[91]
sandhill cranes
,
Red­cockaded woodpeckers
and
Alabama Beach mice
. The storm caused
oil spills
from
44 facilities throughout southeastern Louisiana, which resulted in over 7 million U.S. gallons (26 million L) of
oil
being leaked. Some spills were as small as a few hundred gallons; the largest are tabulated to the right.
While most of the spills were contained on­site, some oil entered…