Sentences with phrase «with fuel crops»

Not exact matches

If we devoted 23 million acres in the southeastern United States to lipidcane with 20 percent oil, we estimate that this crop could produce 65 percent of the U.S. jet fuel supply.

Turning to ethanol or biodiesel doesn't help much, given that those fuels from crops mean less food: hardly in keeping with the Thanksgiving tradition.

The latter cut a five - year deal with the Department of Energy's National Renewable Energy Laboratory in Golden, Colorado, to develop fuels from farm waste, excess from feed crops, or biomass from shrubs.

Currently more than 40 per cent of the US corn crop goes into producing ethanol, which is mostly mixed with gasoline to fuel conventional cars.

Such no - till farming provides a double benefit for farmers: improved soils and reduced fuel use, because it negates the need to harvest the stalks with tractors and other equipment (although it can lead to short - term reductions in crop yields) says Chuck Rice, a soil scientist at Kansas State University in Manhattan, Kan..

One of the major problems with biofuels that algae could solve is space, since algae can yield as much as 100 times more fuel per unit area than other so - called «second generation» biofuel crops (e.g. non-food crops or non-food waste parts of food crops).

By dramatically improving the speed and efficiency of conversion over conventional approaches, these enzymes could stimulate efforts to grow crops for fuel, with implications for biodiversity in the form of increased land use for this purpose, potential shifts away from fossil fuel use and reductions in greenhouse gas emissions.

AltAir does better by sourcing its bio — jet fuel from oil seed — bearing plants, like camelina, but that limits the amount that can be planted in rotation with food crops like wheat given constraints on the amount of land available for the latter.

Beyond producing hydrogen and carbon - rich fuels in a sustainable way, he has demonstrated that equipping the system with a different metabolically altered bacterium can produce nitrogen - based fertilizer right in the soil, an approach that would increase crops yields in areas where conventional fertilizers are not readily available.

The algae uses CO2 from air or industrial emitters with sunlight and saltwater to create fuel while dramatically reducing the carbon footprint, costs and water usage, with no reliance on food crops as feedstocks.

These fuels produced from atmospheric CO2 are carbon - neutral and do not compete with food production for agricultural crop land.

The MINI Cooper Hardtop's entry level engine this year is part of the growing crop of fuel sippers with three inline cylinders.

She added recent stats have aligned with what she's heard from Big Island farmers in the Kona Coffee Belt and what she's witnessed with her own crop, saying there are «thoughts there might be some long - term downward trends» fueling yield reduction.

Doing this with our organic wastes - biofuel crop, some energy is generated and we could greatly expand windmill generated electricity that has no GHG emissions and actually recycles some of the energy excess created by fossil fuels.

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 better.

The only issue I see with ethanol is that it depends somewhat on crop growth, and fossil fuels are used heavily to make modern fertilizer.

The food versus fuel debate has put large - scale biofuel production in a squeeze in recent years, but competition with food crops is just one drawback for which biofuel crop production is criticised.

Please stand with these organisations and ask your MEP to put the brakes on food crops being turned into fuel.

Another category is biomass grown in excess of what would have grown absent the demand for bioenergy, such as growing winter cover crops for energy and replacing traditional — yet inefficient — fuel wood harvests in some poor countries with wood grown in agroforestry systems and local plantations.

However the limit would still expand the use of food crops for fuel and would not end biofuels competing with food production.

we are not choking the biosphere with carbon residues owing to fossil fuel combustion and reducing this insult by instead burning crops or other biomass.

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.....

95 The case for crop - based biofuels was further undermined when a team led by Paul Crutzen, a Nobel Prize — winning chemist at the Max Planck Institute for Chemistry in Germany, concluded that emissions of nitrous oxide, a potent greenhouse gas, from the synthetic nitrogen fertilizer used to grow crops such as corn and rapeseed for biofuel production can negate any net reductions of CO2 emissions from replacing fossil fuels with biofuels, thus making biofuels a threat to climate stability.

I don't disagree that a drought or some other natural (or man made) event may make a big hole in the US corn crop — that is why it is risky for the country to rely on it for any meaningful portion of its fuel --(along with environmental pressures, etc.).

But with food prices rising sharply in recent months, many experts are calling on countries to scale back their headlong rush into green fuel development, arguing that the combination of ambitious biofuel targets and mediocre harvests of some crucial crops is contributing to high prices, hunger and political instability.

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The good news is that it can be done with existing technology, by cutting energy waste, expanding the use of renewable sources, growing trees and crops (which remove carbon dioxide from the air) to turn into fuel, capturing the gas before it is released from power stations, and - maybe - using more nuclear energy.

Physical improvements include switching from fossil fuels to renewable energy, producing products with longer lifetimes, reducing unnecessary waste, shifting from animal to crop products, and investing in new technologies5, 29.

He sees genetic engineering as a tool for environmental protection: crops designed to grow on less land with less pesticide; new microbes that protect ecosystems against invasive species, produce new fuels and maybe sequester carbon.

Deforestation a Much Larger Issue Than Fossil Fuels in Many Places And it would be even more poignant had he been speaking about production of palm oil in Indonesia and Malaysia, where due to greenhouse gas emissions associated with land conversion from rainforest to plantations, the emissions from the fuel made from these crops can be nearly 10 times as much as from conventional fossil fFuels in Many Places And it would be even more poignant had he been speaking about production of palm oil in Indonesia and Malaysia, where due to greenhouse gas emissions associated with land conversion from rainforest to plantations, the emissions from the fuel made from these crops can be nearly 10 times as much as from conventional fossil fuelsfuels.

Undoubtedly there are myriad problems with using food crops to make fuel, or using the land on which food crops are grown to produce fuel, but the answer to that problem is not simply taking the waste of another environmentally and ethically suspect activity and repurposing it.

The Global Bioenergy Partnership (GBEP) which released its comprehensive report on the current status of bioenergy today, says the conflict between growing crops for food versus biofuels is artificial and can be resolved if the United States, Europe and other rich countries drop protectionist policies and work with developing nations to increase the use of the eco-friendly fuels.

These fuel crops can produce usable energy with < 10 % the energy inputs of corn (McLaughlin and Walsh 1998), with lower water and nutrient requirements (Msangi et al. 2007; Heaton et al. 2008a).

Biofuels also are contributing to the hikes but mainly because the EU and the United States are subsidizing domestic production of crops like corn that offer low efficiency when turned into fuel and compete with other foodstuffs for large swathes of land in these already densely populated areas, Clini said.

Faced with a seemingly insatiable demand for automotive fuel, farmers will want to clear more and more of the remaining tropical forests to produce sugarcane, oil palms, and other high - yielding biofuel crops.