EARTHSC 1100 Lecture Notes - Lecture 25: Greenhouse Gas, Orbital Eccentricity, Carbon Cycle

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Take the attendance quiz (open till the 17th) and reading quiz (open till the 15th) Carbon dioxide traps the infrared light/heat in our atmosphere. Roygbiv light comes through, is absorbed by stu , and infrared is what"s given o as a result. It allows photosynthesis to happen and keeps us from freezing. Our current huge temperature jump/climate shift cannot be due to the milanovitch cycles because these take like 25,000 years to a ect change. Although the earth"s orbital eccentricity, tilt, and wobble all a ect its climate, our current situation happened much too quickly. The only other factor in our climate is co2 and humans. Likely no volcanoes erupting and lots of photosynthesis happening. Glaciers melting, sea level increases, volcanoes erupting, not a lot of photosynthesis. About 500 million years ago the beginning of these carbon dioxide changes started happening. Trees showed up and eventually so did humans.

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