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the ocean is one of the Earths most valuable natural resources

without fresh water all life would cease to exist

how do we misuse our oceans?

Main Issues

Not Sustainable- Too many fish in a little cage leads to the spread of sea lice, which forces big companies to overuse pesticides to kill the sea lice.

Overfishing has made some fish populations drop by 90 percent

Sea transport has been the largest carrier of freight throughout recorded history

due to all the water tranportation oil spilling is becoming more common

dumping involves depositing all the waste materials from factories, tankers, plastics etc

Ocean Dumping

dumping started in rivers, lakes because of the distance and difficulty to transport waste material

ocanic creatures consume the waste in the ocean,which cause a steady declind in population

in 1993 US beaches were closed due to sewage contamination

  • "dirty dozen"
  • Cigarette butts
  • paper
  • plastic
  • styrofoam
  • plactic food bags
  • plastic caps and lids
  • popcans
  • plastic straws
  • glass bottles
  • plastic beverage bottles
  • styrofoam cups

oil spills may be caused by digging for oil

Mass Extinction

Scientists are predicting a mass extinction is around the corner if we keep abusing the ocean.

55 million years ago about half of all species were wiped out due to similar atmospheric changes. We have three of the factors involved in every mass extinction to date- Hypoxia and anoxia, warming and acidification

Hypoxia- Small oxygen levels.

Anoxia- Absence of oxygen.

Many areas in the ocean are losing marine life due to these two problems.

Math Aspect

- recycle : re use plactic bags

re use plates & silverware

- Know where your fish is from

- cut down on oil usage

I think that the Leatherback turtles

number in poplulation will grow very low. Their numbers have never really gone back up enough to survive. Due to all the garbage in the ocean how would they survive?

Misuse Of Oceans And It's Resources

transportation

fish farm

oils spills

fish companies go over legal limit

by Garrett & Jehna

demand for fish has doubled since 1950's

Over use of pesticides pollutes the ocean and kills salmon and other marine life.

due to an oil spill

oil spill

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