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Sun Controls Earth’s 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
Earth’s Climate System
When radiation strikes a particle, it can:1.get absorbed by the particle, causing particle to gain energy2.be transmitted through the particle3.be reflected off the particle
Sun’s Radiation:30% is reflected back to space by clouds and surface of Earth70% is absorbed by surface, clouds and atmosphere
Earth Absorbs Sun’s Energy
Earth’s Energy Balance
when Earth’s surface warms, it emits radiation back
the amount of energy Earth’s system absorbs from the Sun equals the amount of energy radiated by Earth’s system
therefore, Earth’s global temperature stays balanced
Balance of Energy on Earth