BBC Learning Zone Clips

CLIP 7050

Global warming - carbon dioxide and acidification of the oceans

Global warming - carbon dioxide and acidification of the oceans
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Key Info
  • Global warming - carbon dioxide and acidification of the oceans
  • Duration: 04:39
  • The volcanic island of Ischia off the Italian coast has natural carbon dioxide vents resulting from volcanic activity. Diving beneath the sea, the impact of increased carbon dioxide concentrations on the marine ecology is revealed. While sea grass thrives, other plants and animals are unable to tolerate the increased acidity in the water and some organisms such as corals dissolve. Back on dry land, scientist Jason Hall Spencer suggests the conditions at Ischia may eventually be replicated across all oceans as a result of carbon dioxide emissions from human activities. This clip was first published on BBC News Online on 10 March 2009. Please note this clip is only available in Flash.
  • Subject:

    Geography

       Topic:

    Climate Change

  • Keywords: CO2, carbon dioxide, greenhouse, gas, global warming, pollution, acid, environment, atmospheric pollution, vents, volcanoes, volcanic, carbon cycle, atmosphere
Ideas for use in class
  • Create a flow diagram to show the carbon cycle. This activity might suggest the transfer and storage of carbon in the oceans is more complex than suggested in the film. Carry out a web search using the term 'carbon sequestration' to find out about ideas for reducing atmospheric CO2.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

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