GEOL 11040 Lecture Notes - Lecture 30: Last Glacial Maximum, Snowball Earth, Cryogenian

• School: Kent State University
• Department: Geology
• Course: GEOL 11040
• Professor: Christopher Rowan

Document Summary

The earth"s climate has changed in the past. It has been much warmer in the past. Around 10 million years ago the earth was warmer with higher sea levels (we think) 20,000 years ago we believe the earth was much colder. The processes that shaped things before are the same processes now. Understanding the present is key to understanding the past. Our civilization is acting like a geological force. Understanding other geological forces and how they"ve damaged the planet will give us an idea of our effect on the earth. Rock units can be interpreted into information about geological history. These can indicate a recent geological past. Almost identical landforms around ohio give evidence of a recent. In order to understand past climate change we must know: How to identify tracks left behind by changes. Similar to tracking animals based on things they leave behind, like footprints or feces.