This video segment explores whether, in principle, renewable energy resources could meet today's global energy needs of about 15.7 terawatts.
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508 compliant (Closed-captioned text provided). Technically well done and of high quality.
Great images and examples of use of renewable energy. This movie will serve as a great start to look at local renewable energy potential. An annotated script, learning goals, vocabulary, and teaching tips are all provided, as well as links to core science standards. Students will be able to list, in order of potential contribution to meeting Earth's energy needs, the following renewable resources: the sun, hydropower, biomass, and geothermal Students will be able to cite some of the pros and cons of biomass used for fuel and compare and contrast corn and sugarcane as sources for biofuels. Students will understand that different nations and different regions have access to different renewable energy resources.
This video could be the beginning of a balanced discussion regarding the challenges of, and potential and opportunities for renewable energy to power industrialized society. The issue of resources vs. reserves is not discussed. Resources is the amount of a natural resource, such as solar energy, petroleum, etc. that exists in nature; whereas reserves are what can be exploited given today's technology, economic, political, legal and cultural constraints. The resources of any energy source will always be bigger than its reserves. Very convincing video about the potential of renewable energies. Annotated script provides some additional background information: http://earththeoperatorsmanual.com/annotated_script/lightbox2.html Passed initial science review - expert science review pending.
Great hook for a module on renewable energy. Before showing video, consider asking students to rate the relative potential contribution of the various renewable energy options. Ask them, depending on where your school is situated, which renewable option they think might be most practical and useful to their region.