Sentences with phrase «use of biofuels cause»

Not exact matches

A team of researchers at Princeton University has developed a way to cause yeast to produce more isobutanol, a possible candidate for use as a biofuel.

The plan assessed various alternative fuels and developed fuel portfolios to meet California's goals to reduce petroleum consumption, increase alternative fuels use, reduce greenhouse gas emissions and increase in - state production of biofuels, without causing a significant degradation of public health and environmental quality.

[1] «Indirect land use change» (ILUC) means that many biofuels harm the climate even more than the fossil fuels they replace — due to land use changes caused by the expansion of agriculture to meet the additional demand for crop - based biofuels.

Melillo's study suggests that changes in the way land is used, as a consequence of growing crops for biofuels, is not taken into account, and if it were then those biofuels would be shown to actually cause more greenhouse gases to be released than fossil... Read more

Biofuel programs pursued by Europe and the United States during the last two decades caused an additional 41 million hectares of land to be used for ethanol and biodiesel production, an area the size of Germany.

Flawed accounting could even encourage greater expansion of biofuels that cause damaging changes in land use, as described in the September 15 EEA Scientific Committee opinion.

- Promoting and rushing the use of biofuels in one of the biggest markets in the world can cause indirect social impacts in the place of their production or manufacture, for the simple reason that biofuels take up land.

Promoting and rushing the use of biofuels in one of the biggest markets in the world can cause indirect social impacts in the place of their production or manufacture, for the simple reason that biofuels take up land.

Almost all biofuels used today cause more greenhouse gas emissions than conventional fuels if the full emissions costs of producing these «green» fuels are taken into account, two studies being published Thursday have concluded.

These are known as «indirect land use changes,» and they are at the heart of a brewing debate between biofuel critics who say the cause - effect relationship is clear, and biofuels proponents who say the indirect changes are almost impossible to measure given the current data available.

But large uncertainties and postulations underlie the debate about the indirect land - use effects of biofuels on tropical deforestation, the critical implication being that use of U.S. farmland for energy crops necessarily causes new land - clearing elsewhere.

The causes of deforestation have been extensively studied, and it is clear from the empirical evidence that forces other than biofuel use are responsible for the trends of increasing forest loss in the tropics.

Instead, we get non-dispatchable power from windmills and solar PV, both of which need big subsidies, and electric cars which cost more, have a high environmental impact and don't meet most people's use cases, biofuels causing food prices rises, and a lot of hand - waving about reduction in demand and insulation.

Even the relatively small use of biofuels in Europe that relies on North American wood pellets is already causing land - use impacts in the southeastern United States (John Upton of Climate Central has recently published an excellent report on this titled Pulp Fiction).