1.   Others would like their homes to be energy efficient but wanted the features to be incorporated into the basic house price.

2.   Number three, do you encourage energy efficiency in your home and in the work place?

3.   But it would also be more energy efficient, costing less to operate.

4.   Computer chips tend to get faster and more energy efficient as they get smaller.

5.   He said future reductions would come from technological advances, more efficient energy use and less flaring.

6.   Make sure your furnace is energy efficient by having the firebox cleaned and the burner element tuned.

7.   Such doors should be avoided because they are not as energy efficient as foam-filled doors.

8.   The advantages of DNA computers would be that they are a billion times as energy efficient as conventional computers.

9.   The disparity retards efforts to promote mass transit as the best road to cleaner air, less congestion, more efficient energy use and economic growth in metropolitan America.

10.   The environmental groups also prevailed in pressing for the use of more efficient energy systems and for recycling programs than landfills for waste management.