Sun Controls Earth

1
Sun Controls Earths Climate System
2
Earths Climate System

• Earth has a global climate system that includes
  air, land, liquid water, ice, and living things.
• The climate system is powered by energy from the
  Sun.
• The Sun emits different types of radiation
• ultraviolet radiation
• visible light
• infrared radiation

3
Earth Absorbs Suns Energy

• When radiation strikes a particle, it can
• get absorbed by the particle, causing particle to
  gain energy
• be transmitted through the particle
• be reflected off the particle
• Suns Radiation
• 30 is reflected back to space by clouds and
  surface of Earth
• 70 is absorbed by surface, clouds and atmosphere

4
Earths Energy Balance
5
Balance of Energy on Earth

• when Earths surface warms, it emits radiation
  back
• the amount of energy Earths system absorbs from
  the Sun equals the amount of energy radiated by
  Earths system
• therefore, Earths global temperature stays
  balanced