ABSTRACT
World demand for energy has increased by more than 50% since 1950, and a similar increase is projected between 2010 and 2030 (National Petroleum Council 2007). Fossil fuels will remain the largest source of energy worldwide, with oil, natural gas, and coal accounting for more than 80% of world demand. Projected growth in U.S. energy demand is 0.5%–1.3% annually (National Petroleum Council 2007), and development of domestic reserves will expand through the œrst half of the 21st century. Western states and provinces will continue to play a major role in providing additional domestic energy resources to the United States and Canada, which is anticipated to place unprecedented pressure on the conservation of wildlife populations throughout the West.
