Definitions. Environment The combined abiotic and biotic components that sum to create the world around us. Ecology The study of how organisms interact with one another and with their nonliving environment. Who are?. Environmental Scientists
NOTE!! The ecological capacity of the world may already be smaller than its ecological footprint.
Would need 3 Earths for the Earth’s population of 6 billion people to use the resources we do in the US.
Fig. 1-8 p. 10
Affluence per person
I = P A T
Environmental effect of technologies
Number of peopleIPAT Model – See web site for more info