Earth’s warming cycle has approximately 300 million years remaining until it climaxes with an average temperature of 95 degrees Fahrenheit (32 degrees Celsius) and just before it begins its cooling cycle all over again. Ice age temperatures are estimated to fall to 32 degrees Fahrenheit (0 degrees Celsius), but when 20 degrees Fahrenheit is added for the blanketing ozone layer, the temperature of the Earth would be 52 degrees Fahrenheit during an ice age (Plate 6 opposite). The temperature of Earth today is 39 degrees Fahrenheit and warming. When the 20-degree-Fahrenheit atmospherically blanketed trapped heat (ozone layer) is added to the Earth’s temperature of today, it raises the Earth’s true temperature to 59 degrees Fahrenheit.
When the Earth started to warm up about 15,000 years ago after the last Ice Age it warmed where the angle of the Sun shone for the longest period. The parts of Earth to warm first after the ice age ended about 25,000 years ago simultaneously were Saudi Arabia and Australia now are. Earth’s iron core and its spin are what causes Earth’s magnetic field which protects us from cosmic rays (subatomic particles) and causes magnetism on Earth. The solar wind protects the solar system which extends 12 trillion miles out from the Sun, from interacting with galactic magnetism.