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Transcript

Louisiana Dead Zone

By: A.R.

3/30/23

What is the Dead Zone? Why is it so important?

The dead zone is an area where the Mississippi River dumps into the Gulf of Mexico, an area of low oxygen that cannot sustain life. This is caused when the Mississippi and Atchafalaya Rivers carry nutrients into the Gulf of Mexico, thereby creating algal blooms. Bacteria feed on the algae once they die, depleting oxygen levels in subsurface waters during the decomposition process. Excessive amounts of nutrients can lead to more serious problems such as low levels of oxygen dissolved in the water. Severe algal growth blocks light that is needed for plants, such as seagrasses, to grow.

How did it impact the environment?

How did it impact people/society?

How did it impact the environment?

How did it impact people/society?

Due to fertilizer being dumped in the ocean the water is very polluted. A lot sea life is dying due to the expansion.

The Louisiana Dead Zone in 1985

The Louisiana Dead Zone in 1985

As a result of no polution the dead zone was about 15 square miles and happened naturally due to Hypoxia.

Louisiana Dead zone now

Louisiana Dead zone now

Due the new and increasingly effective fertilizer and the amount of it the Dead zone has grown up to 8,776 square miles.

The problem

The problem is that naturally this dead zone was only 15 square miles in 1985 however due to agricultural runoff, the burning of fossil fuels and wastewater treatment discharge, the dead zone has now stretched to 8,776 square miles.

The problem

Is the event/issue ongoing? Does this issue involve natural resources? And if so, what?

Is the event/issue ongoing? Does this issue involve natural resources? And if so,

what?

Yes the event is ongoing, the government is making farmers downsize on their fertilizer and are spending $37 million in grant funding provided by the EPA is going towards reducing such pollution.The issue involves nutrient pollution and water pollution.

What people are doing to help

These shrimpers are going around the dead zone and saving any possible sea life

What people are doing to help

Action Plan

The government are informing farmers to cut down on agricultural boosts and to keep any nitrogen fertilizer away from all waterways

Action Plan

Action plan pt. 2

Volenteers are heading to the gulf to extract algae from the ocean to help marine life get more oxygen

Action plan pt. 2

Sources

  • https://thelensnola.org/2022/08/03/dead-zone-smaller-than-expected-but-bigger-than-desired/
  • https://oceantoday.noaa.gov/deadzonegulf-2021/welcome.html
  • https://www.laseagrant.org/education/resources/deadzone/

Thanks for listening!

Thanks for listening

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