1. Energy & Its Impact on Global Society Jerome K. Williams, Ph.D. Saint Leo University Dept. Mathematics & Sciences

2. Part 1: Introduction Energy: An Overview Energy Use & Environment Patterns of Energy Use

3. Energy: An Overview Energy is one of the major building blocks of modern society. – Economic Development & Improved Standard of Living – Environmental Awareness – Geo-political Threats & Actions

4. Energy: An Overview

5. Energy pervades all sectors of society including our personal lives. Energy = “capacity for vigorous action; inherent power; potential forces.”

6. Energy: An Overview

7. Energy is found in many forms. – Wind – Water – Solar – Fossil Fuels (Oil, Coal, Natural Gas)

8. Energy: An Overview Energy is basic concept in all science & engineering disciplines. Energy is conserved quantity: (constant) Understanding energy requires a unique balance between social & technological issues.

9. Energy Use & Environment Energy use is on the rise; one of the major factors affecting environment Waste disposal is an increasingly serious environmental problem Critical Thinking + Core Values = Decision Making

11. Source: U.S. Energy Information Administration

12. Patterns of Energy Use Energy: Global Demand – 3X in last 50 years; might 2X in next 30 years – Consumption rates 1% industrialized countries & 3% developing countries

13. Patterns of Energy Use Principal Sources of Energy – Oil – Coal – Natural Gas – Hydro – Nuclear – Renewables (Water, Wind, Solar, Biomass)

15. Patterns of Energy Use World-wide – 80% comes from fossil fuels – 20% comes from renewables US – Oil: 40% fuel consumption (US & World) – Natural Gas: 23% US consumption – Renewables: 10% US Energy demand

16. Patterns of Energy Use End Uses of Energy – Transportation – Industrial – Residential (Single & Multi-family Homes) – Commercial (Offices, Schools, Stores)