Earthguide Online Classroom

Types of radiation emitted by the Sun and Earth - A comparison Source: Earthguide

Questions for discussion

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Take away concepts

  • The sun emits mostly visible light.
  • Visible light, or the colors that we see are parts of the electromagnetic radiation spectrum.
  • The Earth emits mostly longer wavelength infrared radiation that we cannot see.
  • Sunlight made up of visible light passes through the atmosphere on the way into Earth, but the greenhouse gases in the Earth's atmosphere absorb infrared radiation going out to space.

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