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Ocean acidification presentation created by Northwest School students.

Ocean acidification presentation created by Northwest School students.

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  • 1. By: Cecilia, Willa, Kevin, and Max
  • 2. • When CO2 from factories, power plants, and automobiles go up into the atmosphere 1/3 of the CO2 dissolves into the ocean • The pH decreases and the acidity increases • CO2 mixing with the seawater creates carbonic acid • Carbonic acid reduces the level of calcium carbonate which hurts crustaceans and coral. • Chain reaction from phytoplankton all the way to whales -issues-ocean-acidification/?source=A-to-Z
  • 3. • We are the main culprits of this problem • Cars burn fuels which releases CO2 into the atmosphere • Factory emissions, production, and other energy consuming day to day events. SearchBox&rlz=1I7GGIE_en&biw=1440&bih=703&tbm=isch&tbnid=f6n8IRvjsm0rBM:&imgrefurl= act/what-is-ocean- acidification&docid=c7mJGKuQ5IO0sM&imgurl= oom=1&iact=rc&dur=343&sig=105285789118202410757&page=1&tbnh=135&tbnw=194&start=0&ndsp=15&ved=1t:429,r:13,s:0&tx=81&ty=63
  • 4. •We know today Ocean Acidification is harming marine ecosystems. •5 years ago, Ocean Acidification was not thought of as a huge problem. •Further research showed otherwise. • Since the industrial revolution the pH has gone down 0.1 and could fall another 0.5 by 2100. f3lOEJsMUiM:&imgrefurl= snerN.html&docid=YE9C7j1kS3hVvM&imgurl=
  • 5. • CO2 changes the chemistry of the oceans • Very high levels of CO2 in the atmosphere get absorbed by the worlds oceans • When too much CO2 is absorbed, the oceans start to create carbonic acid • More than 500 ppm of CO2 in the atmosphere does not create a stable living environment • Excess CO2 in the atmosphere comes from Cars and Factories burning either non-sustainable fossil fuels or coal
  • 6. • Reduce CO2 emissions by passing policies that limit carbon dioxide pollution. • Use current laws and regulations to stop pollutants that worsen the effects of ocean acidification. • Invest in research to see and predict how species will be affected • Use knowledge we have now to protect fisheries and preserve marine species.
  • 7. A Sea Change. Dir. Barbara Ettinger. Prod. Sven Huseby. Perf. Sven Huseby. Niijii Films, 2009. DVD. • This video was a great summarization, but took a lots of class time to watch. In the long run, the movie was not worth the amount of time we took watching it. Endangered Oceans. Farmington Hills: Greenhaven Press, 2009. Print. Hoegh, Ove. Fish Swimming Over Coral. Photograph. National Geographic. National Geographic. Web. 26 Nov. 2011. <>. Kurlansky, Mark, and Frank Stockton. World without Fish. New York: Workman Pub., 2011. Print. "Northwest Ocean Acidification — Sightline Institute."Sightline Institute - Solutions for Cascadia -Sightline Institute. Sightline Institute, 3 Nov. 2011.Web. 10 Nov. 2011. < acidification/northwest- ocean acidification/?gclid=CPfGqP7Bt6wCFQNShwod8ye IA>. • This site provided a good summarization for our topic. This topic was well written and reliable with easy to understand vocabulary. "Ocean Acidification... in a Nutshell - YouTube." YouTube - Broadcast Yourself. Web. 15 Nov. 2011. <>. • Pros: This video is clear and informative giving a clear understanding of the problem • Cons: Video may have been a little dramatic and dramatized. "Ocean Acidification - What Is Ocean Acidification? | NRDC." Natural Resources Defense Council – The Earth’s Best Defense | NRDC. Natural Resources Defense Council. Web. 11 Nov. 2011. <>. • This site did a great job with the next step of our research: the in depth description of our topic. It provided a lot of information, a 20 minute long documentary about Ocean Acidification as well as some other sites to take a look at. "Ocean Acidification." Wikipedia, the Free Encyclopedia. Web. 15 Nov. 2011. <>. The Encyclopedia of EARTH a Complete Visual Guide. Berkley and Los Angeles: University of California Press, 2008. Print "What Is Ocean Acidification?" Home | Oceana North America. Web. 26 Nov. 2011. < work/climate- energy/ocean- acidification/learn-act/what-is-ocean-acidification>.
  • 8. “At the current rate of increase, ocean acidity…would devastate many species of fish and other animals that have thrived in chemically stable seawater for millions of years” -Anonymous