Sentences with phrase «fuel combustion present»

Not exact matches

At present, fossil fuel combustion represents a flux to the atmosphere of approximately 9 Pg per year.

The results presented in [3] and [7] showed that a spark plug with fine center and ground electrodes produced lower combustion variation with a reduction of approximately 3.1 % in COV and 2.4 % in the fuel consumption compared to regular spark plugs.

Based on projected world energy requirements, the United Nations Department of Economic and Social Affairs (1956) has estimated an amount of fossil fuel combustion by the year 2000 that with our assumed partitions would give about a 25 percent increase in atmospheric CO2, compared to the amount present during the 19th Century.

But the findings, in recent studies led by Princeton and Cornell universities, represent an identifiable future cost of climate change under the business - as - usual scenario, in which fossil fuel combustion continues to increase at present rates.

If greenhouse gas emissions from fossil fuel combustion continue at the present rate, by 2100 the melting may surpass the levels associated with collapse of the shelves.

Extremes of drought and heat present one kind of threat, and long - term climate change − driven by rising greenhouse gas levels in the atmosphere, as a consequence of the combustion of fossil fuels − is another.

However, when combustion is incomplete or impurities are present in the fuel, the reaction also leads to the emission of various other molecules that can adversely affect human health and the environment.

Some of the conclusions in the study are: «present trends of fossil fuel combustion -LSB-...]

I know that the present Australian government considers rain to be a pollutant, like CO2, hence our upcoming carbon tax, that will seek to phase out all combustion of fossil fuels (which generally produce CO2 to H2O in ratios between 2:1 or close to 1:1).