1. I. Portrait of the Earth

2. A. Connections 1. We have been discussing relationships all year long
a. Biotic to biotic
b. Abiotic to abiotic
c. Biotic to abiotic
2. Earth is an open system for energy
a. Energy is constantly coming in and leaving

3. B. Views 1. Native Americans view the Earth as a living being
a. Atmosphere, crust, mantle, inner and outer core are all parts of it
2. In 1972 Lovelock came up with the Gaia hypothesis

4. a. States that the Earth is a single
a. States that the Earth is a single living organism that regulates itself to maintain life
b. Not new to eastern philosophies
c. Rejected by a lot of people
d. Emphasizes the connections that we have talked about to explain