Item Details

Acid Oceans [electronic resource]

American Museum of Natural History
Format
Video; Computer Resource; Online Video; Online
Summary
If you're an ocean creature with a hard shell - like a sea urchin, a hermit crab, or a coral polyp - you prefer ocean water with a pH of about 8.2. This chemistry makes it easy to assemble your armor from carbon-based building blocks dissolved in the ocean. Since the beginning of the industrial age, though, the ocean has been absorbing the greenhouse gas carbon dioxide from the air. The increase in carbon dioxide has made the ocean's pH more acidic, dropping to 8.05 on average. Biologists like Gretchen Hofmann are realizing that this tiny change is hampering the development of hard-shelled marine creatures, leaving them more vulnerable to environmental stressors. This science bulletin joins Hofmann's team as they use a an acidic ocean environment in a lab at the University of California, Santa Barbara, to study how lower pH affects sea urchins.
Release Date
2008
Run Time
6 min.
Language
English
English (dubbed in)
Rating
6 & up
Notes
Films on Demand is distributed by Films Media Group for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.
Contents
  • Ocean pH Levels (2:07)
  • Carbonate Ions & Future Ocean Chemistry (1:38)
  • Marine Ecosystems in Danger (0:45)
  • Credits: Acid Oceans (0:21)
Published
New York, N.Y. : Films Media Group, [2012], c2008.
Publisher no.
47544 Films Media Group
Access Restriction
Access requires authentication through Films on Demand.
Description
1 streaming video file (6 min.) : sd., col., digital file.
Mode of access: Internet.
System requirements: FOD playback platform.
Technical Details

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    a| Ocean pH Levels (2:07) -- Carbonate Ions & Future Ocean Chemistry (1:38) -- Marine Ecosystems in Danger (0:45) -- Credits: Acid Oceans (0:21) -- Ocean pH Levels (2:07) -- Carbonate Ions & Future Ocean Chemistry (1:38) -- Marine Ecosystems in Danger (0:45) -- Credits: Acid Oceans (0:21)
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    a| If you're an ocean creature with a hard shell - like a sea urchin, a hermit crab, or a coral polyp - you prefer ocean water with a pH of about 8.2. This chemistry makes it easy to assemble your armor from carbon-based building blocks dissolved in the ocean. Since the beginning of the industrial age, though, the ocean has been absorbing the greenhouse gas carbon dioxide from the air. The increase in carbon dioxide has made the ocean's pH more acidic, dropping to 8.05 on average. Biologists like Gretchen Hofmann are realizing that this tiny change is hampering the development of hard-shelled marine creatures, leaving them more vulnerable to environmental stressors. This science bulletin joins Hofmann's team as they use a an acidic ocean environment in a lab at the University of California, Santa Barbara, to study how lower pH affects sea urchins.
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Availability