Ocean deprivation
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A student-produced presentation for the first year seminar "A Call to Action," led by Ellen Hill.

A student-produced presentation for the first year seminar "A Call to Action," led by Ellen Hill.

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    Ocean deprivation Ocean deprivation Presentation Transcript

    • Oceanic Deprivation
      By Morgan, Aly, Chad, and Alisha
    • Coral Bleaching-Quick Facts
      • 65% of The Great Barrier Reef has been affected by coral bleaching.
      • 40% of the worlds coral will be dead from coral bleaching by 2010.
      • Found along islands and live in nutrient poor water.
      • More than 1,000 different species thrive in coral reef.
      • If coral bleaching doesn’t slow down it will completely die out in 1-3 decades
      • They have an extremely high biodiversity and productivity.
      • Reasons for Coral Bleaching: 1.)Temperature 2.) UV Radiation 3.) Atmosphere Exposure 4.)Sedimentation 5.) Freshwater dilution.
      • GLOBAL WARMING!!!!
    • What is Coral Bleaching?
      Definition: the release of the symbiotic colored algae normally living within coral animals, which occurs when coral animals are stressed (by high temperatures, for example) and makes the coral appear whites.
      Symbiotic Colored Algae: Zooxanthellae: Gives color and protection for the coral reef along with there ability to live and thrive. They assist the coral to produce nutrients. Without this their physical appearance would be clear.
    • Coral from Space
    • Normal vs. Bleached
    • Global Warming
      Definition: Depletion of the ozone layer and warming of the planet.
      Causes: Factories, Trucks/Cars, Deforestation, ect.
      They admit chlorine through industrial produced CFC’s of gas.
      Raises temperature within the atmosphere and lets in ultraviolet rays from the sun.
      CO2,CH4, CFC, NO cause infrared rays to get trapped in the atmosphere.
    • Consequences of Global Warming
      Ultraviolet rays that reach Earths surface cause coral bleaching.
      The temperature increase causes coral bleaching.- As little of an increase of 1 degree Celsius can cause coral bleaching.
      1,000 species could potentially lose their home.
      Ice is melting- Polar bears have little habitat and a great loss of hunting grounds. Heat exhaustion is affecting them also. - They will go extinct within the wild within the next few decades.
    • HELP!!!!!!!
    • Ways to Help Prevent Global Warming
      • Green Energy: Wind, Solar, Geothermal Power!
      • The Government of the United States must take ACTION!
      • People Must Take ACTION!
      • Live more sustainably.
      • Shut off lights and electronics when not used.
      • Use clothes line instead of dryer.
      • Shut off water when not in use.
      • RECYCLE
      • Plant trees
      • Car pool
      • Educate Others.
    • OCEAN POLLUTION
    • Pollution Chain
      80 % of marine pollution comes from land based activities.
      Pollution deposits in the waters and estuaries
      Build up there concentrations, become toxic
      Become part of marine food chain
      Don’t care till human casualties
    • Where Else Does It Go
      Doesn’t stop and stay in water
      Many currents take it for a ride
      Wind moves rubbish around real good
      Washes ashore on coast line
      Pollutes land to the sea, and back to the land
      Never ending battle with an enemy that cant quit without human action
    • Major Pollutants
    • OIL
    • Where does it come from
      Only 2 % of hydro carbon pollution comes from tanker accident
      11% is from natural sources (tar-sands, oil seeps)
      13% comes from the atmosphere
      24% comes from all forms of transport
      50% comes from drains and rivers leading into the sea
      - US National Science Foundation
    • Seems small
      Tankers accidents may only be 2%
      But in 1967
      - Torrey Canyon ran aground off the English channel
      - 106,000 tons of oil
      - smallest of tanker accident,
      2% is not small
    • A Very Big Accident
      http://www.youtube.com/watch?v=G1U-iWUPOYA
    • Exxon Valdez
      20,000 barrels an hour
      256,000 gallons afternoon
      11 million gallons
      Biggest Tanker Accident to happen on American waters
    • Exxon Valdez
      • Covered 10,000 square miles
      • Connecticut, Rhode Island, and 25 Washington DC’s
      • Week goes, currents and winds take over
      • Pushes 90 miles from site into Alaskan Gulf
      • 600 miles away
      • +130,000 miles contaminated
    • Exxon Valdez
      Wild life
      Quarter of a million sea birds
      1000 sea otters
      300 harbor seals
      250 bald eagles
      At least 20 orca
      Billions of salmon and ruined many
    • Cleanup
    • Recovery in Prince William Sound?
      http://www.youtube.com/watch?v=MbjC9SMKClE
    • Seems Big
      Exxon Valdez horrible accident
      1980 Norwuz Field Spill
      - Arabia 80 Million Gallons
      1992 Fergana Valley Spill
      - Uzbekistan 80 Million Gallons
    • Other forms of major pollution
      Nuclear/Radioactive waste
      Sewage
      Munitions disposal
    • WWFCNWorld Wildlife Fund Conservation Network
      • Cause: To help oceans from becoming overburdened and under-protected.
      • Main fights: Over fishing and Runoff Pollution
      • The Law of the Sea Treaty
    • “The Law of the Sea Treaty”
      Includes rules that govern airspace, subsoil, and sea beds.
      158 Nations have joined this treaty since established in 1982, but the United States has failed to yet. Until we have, we will have no voting power in ratifying the future of our oceans.
      The United States will suffer economically due to the new issue on the future Arctic Ocean.
    • OVERFISHING
      75% of Marine environment has been overfished.
      Without laws to protect the fish population from being overfished, 950 million people will lose their main source of protein.
      Could cause us to lose large numbers of species and/or biodiversity within the ecosystem of the ocean.
      Once you have affected the population of fish, you affect other species by depleting their food source and the ecosystems cycle of life.
    • Pollution and Littering
      Runoff- Septic tanks, car fuels, boats, chemicals from farms and ranches.
      Littering- Garbage bags, balloons, plastic, cigarette filters.
      OIL SPILLS!