Energy security, a major driver of federal energy efficiency programs in the past, came back into play as oil and gas prices rose late in the year 2000. Also, the electricity shortages in California have brought a new emphasis to the role that energy efficiency and energy conservation may play in dampening electricity demand.

Growing populations and changing values continue to place increasing demands on water supplies and river systems, resulting in water use and management conflicts throughout the country. Recent conflicts are particularly evident in the West, where the population is expected to increase 30% in the next 20-25 years and where agricultural needs are often in direct conflict with urban needs, as well as with water demand for threatened and endangered species, recreation, and scenic enjoyment.