1. Tracing the origin of Anthropocene
1.1. The beginning of a new epoch
1.1.1. Paul Crutzen
1.1.1.1. began in late 18th century
1.1.1.1.1. when carbon dioxide started to rise
1.1.1.2. want it to be the warning of the world
1.1.2. other scientists
1.1.2.1. mid 20th century
1.1.2.1.1. population and consumption growth increase rapidly
1.2. A working group of the International Commission on Stratigraphy (ICS)
1.2.1. detemine the merging of the concept into geological timescale
1.3. the International Union of Geological Sciences (IUGS)
1.3.1. Final vote with ICS
2. A new perspective on Earth's history
2.1. When human made significant impact on Earth's geology and ecosystems
2.2. New epoch
2.2.1. geological term
2.3. Came up by Paul Crutzen, 2002
2.3.1. immediately caught attention
2.3.2. being popularized by non-geologists
2.4. 1987, Stoppani proposed a new era "Anthropozoic"
2.4.1. denied by scientists
3. How are we changing the planet
3.1. Main areas of human impact
3.1.1. Cities
3.1.1.1. force of erosion
3.1.1.1.1. sedimentation
3.1.1.2. no good for long term preservation
3.1.1.3. lacks of materials
3.1.1.3.1. glass
3.1.1.3.2. concrete
3.1.2. Agriculture
3.1.3. Deforestation
3.1.3.1. 2 coded signals
3.1.3.1.1. soil erosion
3.1.3.1.2. Loss of forest habitats
3.1.4. Compositions of atmosphere
3.1.4.1. Greenhouse gases emissions
3.1.4.1.1. push global temperature to levels have not been seen for million years
3.1.4.1.2. plants and animals shift to Poles
3.1.4.1.3. sea level rises