Man+Made?



The planet Earth orbits the Sun, a star, which is a ball of hydrogen and helium that is constantly performing nuclear reactions. It is capable of sending enough radiation 92.58 million miles to heat our planet perfectly allowing life to exist. That distance is the same as circling the globe 3718 times. That's 578,625,000 hundred meter dashes. In other words, really far. The fact that the Sun is capable of sending the heat and radiation required to make life on Earth exist shows just how powerful it is. The Sun puts out more energy in a second than all of human kind could in a million years. I believe blaming climate change solely on humans is taking away due credit from the sun. An astronomer Milutin Milankovitch came up with a hypothesis that the Earth's orbit around the sun changes over time. After studying changes in the tilt of Earth's axis, variations in the shape of Earth's orbit around the sun, and precession (changes in how the tilt of the axis is oriented in relation to the orbit.) he found that every 41,000 years the tilt of the Earth gradually changes from 22.1 to 24.5. His calculations also showed that every 90,000 to 100,000 years the orbit of Earth around the sun changes sligthly allowing the difference between the perihelion (when the Earth is receiving the least amount of Sun's radiation) and the aphelion (when the Earth is receiving the most amount of the Sun's radiation). Every 22,000 years the orientation of Earth's tilt changes. 11,000 years ago the Northern Hemisphere was pointed towards the sun in December rather than June. These shifts could all be reasons for climate changes in the past and we could be on course for another one today.

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