The walls were built extra thick to save heat and energy-efficient appliances kept energy use low.

VOA: special.2009.10.27

He says these "virtual desktops" lower costs,reduce energy use and lessen the need for technical support.

VOA: special.2010.04.12

It says it will work with manufacturers of high-energy products to try to improve energy use.

VOA: special.2009.07.17

The main goal was to create beautiful homes that can meaningfully cut energy use.

VOA: special.2009.10.27

The Consumer Electronics Show has an area for companies to demonstrate products that save energy,reduce waste and use recycled materials.

VOA: special.2010.01.08

Scientific American magazine says huge lasers turn only about twenty to thirty percent of the energy they use into a laser beam.

VOA: special.2010.09.01

Economists blamed the crisis on different causes, including high energy costs, bad weather and the use of food-crop lands for biofuel production.

VOA: special.2010.03.23

For example, a popular energy shot warns against use by people who are pregnant, nursing a baby or under the age of twelve.

VOA: special.2009.07.22

Solar water heaters are devices that use energy from the sun to heat water.

VOA: special.2009.04.20

Among the products were TVs that use light emitting diodes, or LEDs,to save energy.

VOA: special.2010.01.26

Then they use radio frequency energy to heat the tissue around the catheter.

VOA: special.2010.03.02

And how the systems that we have designed for the house and we've used for the house how efficient they are and how little energy they use."

VOA: special.2009.10.27

More racing companies are now producing cars that use less energy.

VOA: special.2009.11.03

It would allow businesses to buy licenses to emit greenhouse gases from other firms that use less energy.

VOA: standard.2009.05.30