Ocean acidification presentation created by Northwest School students.

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
http://ocean.nationalgeographic.com/ocean/critical
-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.
http://www.google.com/imgres?um=1&hl=en&rls=com.microsoft:en-us:IE-
SearchBox&rlz=1I7GGIE_en&biw=1440&bih=703&tbm=isch&tbnid=f6n8IRvjsm0rBM:&imgrefurl=http://na.oceana.org/en/our-work/climate-energy/ocean-acidification/learn-
act/what-is-ocean-
acidification&docid=c7mJGKuQ5IO0sM&imgurl=http://na.oceana.org/sites/default/files/acidification_chemistry_chart_3.jpg&w=500&h=349&ei=5i_RTpzrLczQiALKyMDJCw&z
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.
http://www.google.com/imgres?num=10&hl=en&biw=1280&bih=933&tbm=isch&tbnid=PxN
f3lOEJsMUiM:&imgrefurl=http://wiki.nisk.k12.ny.us/groups/84physicalscience/wiki/6a69a/Po
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.
<http://ocean.nationalgeographic.com/ocean/critical-issues-ocean-acidification/?source=A-to-Z>.
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. <http://www.sightline.org/research/energy/ocean 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.
<http://www.youtube.com/watch?v=d0kacyyLVB4>.
• 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. <http://www.nrdc.org/oceans/acidification/>.
• 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.
<http://en.wikipedia.org/wiki/Ocean_acidification>.
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. <http://na.oceana.org/en/our- 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