The theories on environment give a view of how the environment influences the society. 

1. Buckle (single factor theory) - states that the environment is a very important factor for societies to flourish. in the olden days the warm climates, fertile soil and rain helped the Eastern nations to flourish while the the Northern countries used industrial ways to produce food in the cold climate.  According to this theory, it meant that countries with a warm climate ended up overcrowded as the population grew because of the cheap food they were able to produce during the warm climate.

2. Huntington - believed that the temperate climate in  Northern countries led them to being civilized which in turn made them cruel.

3. Herbert Spencer - applied Darwinism's theory of natural selection, stating that people are competing for survival with other species in the universe and also with each other, and that who ever becomes successful is a product of natural selection. 

4. Mead, Cooley , Thomas - states that physics and nature/climate are being replaced by psychology.

5. Robert Park - states that functionalism was chosen and the notion of an ecological model was rejected.

6. Durkheim - states that society is made up of social organisms that has to constantly adapt to the physical and social environment. 

7. Modernization in sociology and response to environmental degradation by society - human societies are being excluded from the ecological principles that govern other species.

8. Classical theorists - states that the environment and society are linked.