Key concepts of Climate Literacy Essential Principle 1:
a. Sunlight reaching Earth can heat the land, ocean, and atmosphere.
b. When Earth emits the same amount of energy as it absorbs, its energy budget is in balance, and its average temperature remains stable.
c. The tilt of Earth's axis relative to its orbit around the Sun results in predictable changes in the duration of daylight and the amount of sunlight received at any latitude throughout a year.
d. Gradual changes in Earth's rotation and orbit around the Sun change the intensity of sunlight received in our planet's polar and equatorial regions.
e. A significant increase or decrease in the Sun's energy output would cause Earth to warm or cool.