Sentences with phrase «crops for ethanol»

On the other hand it uses and existing source instead of burning 1 / 6th of our feed crop for the ethanol boondoggle.

Meanwhile the US uses an incredible 40 % of the corn crop for ethanol.

Yup, and that» 40 % of the corn crop for ethanol» is the direct reason for the greatest increase in food prices in the past 30 years.

Not exact matches

When former U.S. vice-president Al Gore said last fall that his earlier enthusiasm for corn - based ethanol production in the United States was a mistake, he was conceding something that had long been obvious: the practice of diverting food crops to biofuels has contributed to food shortages and driven up prices for staples across the globe.

And Brazil, arguably the world leader in making ethanol from crops, has been turning sugar cane into fuel for nearly three decades — a process that is 30 % cheaper than corn - based production in the U.S.

There are higher ethanol yield crops that can be grown in areas unsuitable for corn.

Hypothetically, if all the main cereal and sugar crops (wheat, rice, maize, sorghum, sugar cane, cassava and sugar beet), representing 42 % of global cropland, were to be converted to ethanol, this would correspond to only 57 % of total petrol use in 2003, and leave no cereals or sugar for human consumption (although the reduced sugar in the human diet would have health benefits).

There is certainly a case for re-doubling the scientific efforts to produce bio-fuels on lands which do not compete with food crops, for example from cellulosic ethanol, but this technology is still not ready for the market.

Once harvested, these crops would get ferried by truck or train to power plants and other industrial facilities where, along with waste from food crops and timber harvests, they would be burned for heat or electricity, or converted to ethanol and other liquid biofuels.

According to analyses that have been published in Science and carried out by the California Air Resources Board, corn - based ethanol is actually worse than gasoline, mainly because growing more corn for ethanol forces farmers to clear additional grasslands and forests to grow food crops.

All use of biomass — whether for ethanol or electricity — runs the risk of displacing food crops, however, as well as the need for large amounts of water.

This figure shows how much water is used to produced one unit of ethanol (defined as water use intensity) for each energy crop.

By using a combination of crop growth, hydrological, carbon and nitrogen cycle models, researchers found that the estimated land suitable for bioenergy grasses — particularly Miscanthus, the most productive bioenergy crop — is limited, despite its relatively high biomass productivity and low water consumption per unit of ethanol.

Corn ethanol made from irrigated crops, for example, can use more than 1,000 times more water than oil refining, according to calculations by Sandia National Laboratory.

In the second study, Timothy Searchinger, a researcher at Princeton University, looked at a future scenario in which the United States substantially increases its production of corn - based ethanol, a move that would decrease domestic crops for food and feedstock.

Cellulosic ethanol will allow ethanol production from lands not suitable for crops.

A better title would have been: «Fueled: The Effects of Using Food for Fuel» or something like that, because the central question of the book is to what degree has using crops to produce biomass for fuel production (usually ethanol) affected the costs of food and fuel.

The key factors determining carbon emissions for corn - based ethanol are (1) whether coal or natural gas is used to power the ethanol plant, (2) whether distillers grains are dried or sold wet, and (3) whether expansion of corn acreage comes mainly from reduced acreage of lower - value crops or if idled land is brought into production.

For ethanol there is in deed a big question here, but the DOE study on biodiesel claims that you get 3.5 units of biodiesel energy out for each unit of fossil fuel energy you put in; with better technology and crops, it can ge bettFor ethanol there is in deed a big question here, but the DOE study on biodiesel claims that you get 3.5 units of biodiesel energy out for each unit of fossil fuel energy you put in; with better technology and crops, it can ge bettfor each unit of fossil fuel energy you put in; with better technology and crops, it can ge better.

I saw your support for cellulosic ethanol, but no statement on the logic (or lack thereof) of the United States diverting some 40 percent of its corn crop to fuel while world grain prices soar.

The best biofuel is still ethanol from corn but it has to be part of an integrated production facility which should include the following steps: cattle feed lot, feed all waste (distiller's dried solids) to the cattle, convert the cattle waste to methane to supply part of the energy source for the distillation, burn the dry crop waste to provide the remainder of the energy, irrigate the crops with the effluent from the methane digestor.

Remember the huge role ethanol and other biofuels are playing in competing for food crops, boosting price rises.

Tennessee has the potential to produce billions of gallons of cellulosic ethanol by using 4.5 million acres of land identified by the Oak Ridge National Laboratory as ideal for energy crop cultivation.

Plans on the Hill right now for a five-fold increase in ethanol imply, well, going to 100 % of the crop.]

Eligible feedstocks for gasoline substitutes are waste - based biomass and purpose grown crops with a carbon intensity substantially lower than current average California produced ethanol using Midwest corn feedstocks (80.7 gCO2 - eq / MJ).

This projected growth assumes that the anticipated expansion in cellulosic crop production would be used primarily for electricity generation rather than ethanol production.

Bioenergy challenges a sustainable food future most directly when government policy causes diversion of food crops into ethanol or biodiesel for transportation.

The researchers examined three ways of using sunlight to power cars: a) the traditional method of converting corn or other plants to ethanol; b) converting energy crops into electricity for BEVs rather than producing ethanol; and C) using PVs to convert sunlight directly into electricity for BEVs.

This extra water use stems from the irrigation of crops like corn that are turned into ethanol, or in the production of the electricity for recharging hybrids.

The researchers found that using biomass to produce electricity for electric vehicles would produce 81 percent more transportation miles than using the same amount of crops to produce ethanol.

BP said it would soon build a demonstration plant in Florida for a type of ethanol made from plant material; Shell has worked with several firms since 2002 to develop ethanol from nonfood crops.

At the moment, most of this comes from ethanol produced by corn, and in the future plans are to power vehicles from forests, oil crops such as oil palm and soya for biodiesel, and other biomass.

The ethanol industry has been criticized for the amount of energy used to grow crops and produce ethanol.

To produce enough corn - based ethanol to meet current U.S. demand for automotive gasoline, we would need to nearly double the amount of land used for harvested crops, plant all of it in corn, year after year, and not eat any of it.»

«Excessive prices for oil and food» to a certain extent the result of policy restrictions on the use of hydrocarbons, the effect of extrusion from the structure of arable food crops through improved crop plants from which ethanol is produced to replace hydrocarbons as fuel.

Because so little energy is required to cultivate crops such as switchgrass for cellulosic ethanol production, and because electricity can be co-produced using the residues of such cellulosic fuel production, reductions in greenhouse gas emissions for celluslosic ethanol when compared to gasoline are greater than 100 per cent.

Practically speaking, one would probably use for ethanol production only a little over half of the soil bank lands and add to this some portion of the plants now grown as animal feed crops (for example, on the 70 million acres that now grow soybeans for animal feed).

Throw in more competition for these same crops due to an increase in ethanol production and you have a recipe for higher gas prices, higher food prices and even possibly shortages of one, the other, or both.

Food prices have also increased dramatically when food crops are used for ethanol, causing hardship in poor communities.

93 In a world that no longer has excess cropland capacity, every acre planted in corn for ethanol means another acre must be cleared somewhere for crop production.

Montford notes «By 2012... some estimates suggest that 40 percent of the US corn crop was being used for ethanol production.»

It is now clear that the federal corn ethanol mandate has driven up food prices, strained agricultural markets, increased competition for arable land and promoted conversion of uncultivated land to grow crops.

Corn ethanol — For the first time ever, more of the corn crop may go into gas tanks than into the stomachs of cattle and poultry destined for kitchen tablFor the first time ever, more of the corn crop may go into gas tanks than into the stomachs of cattle and poultry destined for kitchen tablfor kitchen tables.

Clearing land to grow crops for «green» biofuel and mandating tree planting to reverse the effects??? Brazil's enthusiasm for ethanol has contributed to deforrestation and all the attendant destruction of biodiversity and yet we encourage these alternate fuels with additional subsidies.....

We acknowledged the bee situation in a post nearly a year ago, noting that the large - scale conversion of grasslands to grow crops for a number of uses was crowding out bees, butterflies and others — including increasing acreage being devoted to ethanol production.

Industrial Hemp is not smokeable (its THC content is way to low) it's a great energy crop for making ethanol, biodiesel and plastics (or just use the hemp fibers outright), its only disadvantage is that it looks just like the hemp meant for getting high.

But the models fail to account for dynamic reactions to a corn crop reduction (in this case a simple and very cost efficient response would be to end corn ethanol subsidies, thus redirecting corn to food rather than fuel, ending an inefficient industry and encouraging ethanol industries in tropical nations using sugar cane, which makes a lot more sense than corn ethanol).

They say the technological fixes also distract from more challenging social reforms like slowing the rate of population growth, shifting away from crops like corn ethanol that don't put food on the table, or ending subsidies for livestock production, which currently eats up an appalling 75 percent of the world's agricultural land.

Because of this policy, ethanol production now consumes approximately 40 percent of the U.S. corn crop, and the cost of corn for use in food production has increased by 193 percent since 2005 [the year before the RFS took effect].

Almost all of these projects differ from the ethanol being blended into the US gasoline supply in that they are made from inedible feedstocks, which sidesteps one of the critiques often leveled at biofuels: that they compete in with crops raised for people or livestock, driving up food prices.