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All About Carbon Dioxide

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Description

This animation depicts the carbon cycle in a fashion that is suited for younger audiences. The video discusses how carbon enters and exits the environment through both natural and human-driven ways.

Disciplinary Core Ideas

  • Human activities, such as the release of greenhouse gases from burning fossil fuels, are major factors in the current rise in Earth’s mean surface temperature (global warming). Reducing the level of climate change and reducing human vulnerability to whatever climate changes do occur depend on the understanding of climate science, engineering capabilities, and other kinds of knowledge, such as understanding of human behavior and on applying that knowledge wisely in decisions and activities.
  • Gradual atmospheric changes were due to plants and other organisms that captured carbon dioxide and released oxygen.
  • Changes in the atmosphere due to human activity have increased carbon dioxide concentrations and thus affect climate.
  • Photoelectric materials emit electrons when they absorb light of a high-enough frequency.

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