http://www.noaanews.noaa.gov
Ocean Acidification
Will the reef survive?
1
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
2
www.physicalgeography.net
3
Carbon dioxide dissolves in the ocean, where it causes a
potentially more serious problem  ocean acidification.
Hoegh-Gulderg et al. 2007
4
Ocean acidification poses a threat to shell-forming
organisms like corals and calcifying plankton.
www.greendiary.com
http://elrid.cult.bg
5
ACIDS
The pH Scale
BASES
A small change in pH is
equal to a LARGE change
in acidity.
www.thegardenersresource.com
6
CO2 + H2O
Carbonic acid
reduces
H2CO3
ocean pH.
carbonic acid
CO2 + CO32- + H2O
2HCO3 –
The
carbonate ions bicarbonate ions concentration
of carbonate
ions
decreases.
7
www.divegallery.com
www.greendiary.com
www.noaanews.noaa.gov
http://elrid.cult.bg
8
www.travel-vancouver-island.com
www.nceas.ucsb.edu
www.bigmoviezone.com
www.noaanews.noaa.gov
http://elrid.cult.bg
9
http://www.noaanews.noaa.gov
10
Yeast
www.wikipedia.com
11
Yeast Experiment
Carbon Dioxide Probe
LabQuest
pH Probe
12
Yeast Experiment
Add sugar and yeast to water.
Yeast will produce carbon dioxide.
13
Yeast
growing on
sugar and
water
Yeast Experiment
Carbon
dioxide
gas
Carbon Dioxide Set-up
Carbon
dioxide gas
dissolved in
water
Yeast
growing on
sugar and
water
pH Set-up
14