Separating burning fuels from each other also reduces the heat.

However, burning fuel with a lower octane rating than required by the engine often reduces power output and efficiency one way or another.

Novamont says the fuel reduces emmissions of other pollutants by 50 percent, except for carbon dioxide.

Environmental regulations (laws) and low-pollution fuels (for example liquified natural gas) can reduce pollution.

Separating burning fuels from each other can also reduce the heat.

Omitting the jet engines and their fuel would reduce complexity and increase payload.

But there is uncertainty over how much algal fuels would reduce greenhouse gas emissions.

These fuels reduce carbon monoxide emissions up to 20 percent and do so more cost-effectively than any alternative strategy.

A reformulated fuel now being sold in California reduces emissions from decade-old vehicles by 20 percent at no additional cost to the consumer.

So the extra fuel needed for these flights reduced cargo capacity.