But the study says it can be more economical in the long term than using fuels like gasoline, diesel or kerosene.

VOA: special.2010.01.11

IDE executive director Zenia Tata says some who were able to buy diesel pumps now do not enough money to buy fuel.

VOA: special.2009.08.17

High levels of sulfur in diesel made from petroleum have meant diesel engines produce a strong smell.

VOA: special.2010.11.17

And GM has said it will manufacture a diesel passenger vehicle for the American market soon.

VOA: special.2010.11.17

Mister Zundt says a hydrogen bus will last an average of twenty years, while a diesel bus can be used for five to eight years.

VOA: special.2009.09.07

Mister Zundt says diesel vehicles are the main cause of air pollution in Sao Paulo.

VOA: special.2009.09.07

Traditional buses that run on diesel fuel release harmful carbon dioxide and other pollutants.

VOA: special.2009.09.07

Before that time, submarines had operated on diesel fuel and electricity.

VOA: special.2010.06.11

Most buses around the world run on diesel fuel.

VOA: special.2009.09.07

So how do you feed a city like, for example, Nairobi or many other very large mega-cities with desperately poor people in them where food simply cannot be provided in cities without access to diesel and so on?" Taylor says governments need to start investing in safe and sustainable energy alternatives.

VOA: standard.2009.10.20