They're very efficient." Not far from Taylor Glacier, researchers for the American space Agency are using the icy Lake Bonney to test an underwater robot vehicle.

VOA: special.2009.06.03

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

The surge in exports comes as India turns into a production hub for cheap, fuel efficient cars.

VOA: standard.2009.09.25

It is not just domestic sales that jumped. Exports also increased by more than 18 per cent as demand increased for compact, fuel efficient cars in several countries.

VOA: standard.2009.03.13

He is the director of applied research for the Solid Waste Association of North America, a professional organization that promotes the efficient and environmentally-sound management of municipal solid waste.

VOA: standard.2010.08.05

are very similar genetically. "And that's a real problem when you're trying to overcome new insect or disease threats or pressures, or trying to breed a plant that's more water efficient, or even finding genetic variation for water production."

VOA: standard.2010.02.01