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Ocean Acidification

http:// www.noaanews.noaa.gov. Ocean Acidification. Will the reef survive?. The burning of fossil fuels releases 11 BILLION TONS of carbon dioxide into the atmosphere every year. http://www.independent.co.uk. http://www.babble.com. www.physicalgeography.net.

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Ocean Acidification

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  1. http://www.noaanews.noaa.gov Ocean Acidification Will the reef survive?

  2. The burning of fossil fuels releases 11 BILLION TONS of carbon dioxide into the atmosphere every year. http://www.independent.co.uk http://www.babble.com

  3. www.physicalgeography.net

  4. Carbon dioxide dissolves in the ocean, where it causes a potentially more serious problem  ocean acidification. Hoegh-Gulderg et al. 2007

  5. Ocean acidification poses a threat to shell-forming organisms like corals and calcifying plankton. www.greendiary.com http://elrid.cult.bg

  6. The pH Scale ACIDS • A small change in pH is equal to a LARGE change in acidity. BASES www.thegardenersresource.com

  7. Carbonic acid reduces ocean pH. CO2 + H2O H2CO3 carbonic acid CO2 +CO32-+ H2O carbonate ions 2HCO3 – bicarbonate ions The concentration of carbonate ions decreases.

  8. As the ocean acidifies, organisms such as corals, snails, and calcifying plankton will not be able to make their shells and grow. www.divegallery.com www.greendiary.com http://elrid.cult.bg www.noaanews.noaa.gov Zooplankton (Pteropod) Coral Phytoplankton (Coccolithophore )

  9. www.travel-vancouver-island.com www.nceas.ucsb.edu www.bigmoviezone.com www.noaanews.noaa.gov http://elrid.cult.bg

  10. http://www.noaanews.noaa.gov

  11. Quick Demo • Biogenous sand • Corals and shells • Add vinegar • What will happen? • Acidic vinegar dissolves CaCO3 • Shells dissolve in acidic conditions

  12. Ocean’s of Rootbeer • Dry ice -110 degrees • What is it? • CO2 • What is the “smoke” • Water vapor • How does it get to this phase • Sublimation • Solid to gas without passing through liquid phase

  13. Factors that speed reaction • Surface area • Temperature • Pressure • Concentration

  14. Yeast www.wikipedia.com

  15. Yeast Experiment Carbon Dioxide Probe LabQuest pH Probe

  16. Yeast Experiment Add sugar and yeast to water. Yeast will produce carbon dioxide.

  17. Yeast Experiment Yeast growing on sugar and water Yeast growing on sugar and water Carbon dioxide gas Carbon dioxide gas dissolved in water Carbon Dioxide Set-up pH Set-up

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