Sentence examples for more expensive fuels from inspiring English sources

The work, using detailed data and well-established economic models, assumed cost effective climate policies would use the cheapest fossil fuels first, with more expensive fuels priced out of a world in which carbon emissions were strictly limited.

But with heavy pressure on the companies' bottom lines, the advent of more efficient planes and a period of low oil prices, the airlines — with a few exceptions — have been slow to adopt the novel and more expensive fuels.

The spokesman, Bob Mahony, said that New York City plants, if pushed by a new law to burn cleaner, more expensive fuels like natural gas exclusively might find themselves in a competitive disadvantage with dirtier, coal-fired plants in the Midwest.

The upcoming regulations have been the subject of intense lobbying by utilities that argue the rules would force them to switch to more expensive fuels or install costly equipment on power plants to reduce the amount of mercury being spewed into the air.

Energy efficiency encompasses conserving a scarce resource; improving the technical efficiency of energy conversion, generation, transmission and end-use devices; substituting more expensive fuels with cheaper ones; and reducing or reversing the negative impact of energy production and consumption activities on the environment.

Therefore, there is a strong need to embark on energy efficiency which encompasses conserving a scarce resource, improving the technical efficiency of energy conversion, generation, transmission, and end-use devices; substituting more expensive fuels with cheaper ones; and reducing or reversing the negative impact of energy production and consumption activities on the environment.

Food is more expensive, fuel is scarce and medical supplies cannot be bought.

Even without more expensive fuel, carmakers have been under pressure to make better-looking cars.

So without such regulatory changes, the industry is highly unlikely to simply accept more expensive fuel costs.

Environmental directives require Channel ferries to reduce sulphur emissions through investing in additional technology or switching to more expensive fuel.

Other knock-on effects might include a change in airline passenger rights, more expensive fuel and motorway toll prices, and limits on duty free.