Ocean acidification will-the_reef_survive-non-narrated[1]

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Ocean AcidificationWill the reef survive?

http://www.noaanews.noaa.gov

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http://www.independent.co.uk

The burning of fossil fuels releases

11 BILLION TONS of carbon dioxide into the atmosphere every year.

http://www.babble.com

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www.physicalgeography.net

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Carbon dioxide dissolves in the ocean, where it causes a potentially more serious problem ocean acidification.

Hoegh-Gulderg et al. 2007

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Ocean acidification poses a threat to shell-forming organisms like corals and calcifying plankton.

www.greendiary.comhttp://elrid.cult.bg

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The pH Scale

A small change in pH is equal to a LARGE change in acidity.

www.thegardenersresource.com

AC

IDS

BA

SE

S

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CO2 + H2O

CO2 + CO32- + H2O

carbonate ions

Carbonic acid reduces

ocean pH.

The concentration of carbonate

ions decreases.

H2CO3

carbonic acid

2HCO3 –

bicarbonate ions

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www.divegallery.com

www.noaanews.noaa.govwww.greendiary.com http://elrid.cult.bg

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www.travel-vancouver-island.com

www.bigmoviezone.com

www.noaanews.noaa.gov

http://elrid.cult.bg

www.nceas.ucsb.edu

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http://www.noaanews.noaa.gov

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www.wikipedia.com

Yeast

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LabQuest

Carbon Dioxide Probe

pH Probe

Yeast Experiment

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Yeast Experiment

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

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Yeast Experiment

Carbon Dioxide Set-up pH Set-up

Yeast growing on sugar and water

Yeast growing on sugar and water

Carbon dioxide gas

Carbon dioxide gas dissolved in water