Sentences with phrase «for fuel crops»

Not exact matches

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.

For years, China voraciously gobbled up all manner of metals, crops and fuels as its economy rapidly expanded.

Forests are destroyed and villages start to use crop residues and animal dung for fuel.

At least 70 percent more calories would be available if farmers shifted from growing crops for feed and fuels to food production

Like bankers do for financial debt, climate scientists assume that the greenhouse gas expense of burning biofuels will be paid back eventually as the crops that make fuel «earn» carbon through sequestering it throughout their life cycle.

Rapid population growth and the constant need for greater crop yields have fueled the change.

The bioenergy crop sorghum holds great promise as a raw material for making environmentally friendly fuels and chemicals that offer alternatives to petroleum - based products.

If oil - intensive algae were cultivated on a broad scale — the kind of scale now used for other commercial crops — they could eventually replace the 70 percent of the U.S. oil supply used for transportation in the form of jet fuel, gasoline, and diesel, according to Weeks.

Chemical engineer Charles Wyman of the University of California, Riverside, argues for biorefineries turning seed oil, the stalks and other detritus of crop plants, and even wood pulp waste into an assortment of alternative fuels.

A new study shows that degraded, marginal or abandoned land may not be very productive for growing fuel crops

Biofuels Growing mushrooms for biodiesel could require far less soil and other resources than commonly cultivated fuel crops.

The algae grow quickly, tolerate extreme weather conditions and do not pose the same issues as biofuel crops that are grown both for fuel and food.

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..

«Using corn and other food crops for bio-based fuels and other products may not be sustainable in the long - run.

Growing crops for fuel — known as biofuels — represents another potential way of cutting GHGs by replacing fossil fuels (biofuels created underground by nature over millions of years).

It means they are not rewarded simply because their crops are used for fuel instead of food.

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.

Properly situated, vertical farms could eliminate the need for long - distance crop transport and refrigeration, reducing fossil fuel use and greenhouse gas emissions.

Coming from an engineering background, I was pleased to see that the only realistic alternative to fossil fuel for transport, namely biofuel from non-food crops, is at last attracting serious attention (8 December, p 34).

Use the sun's energy to grow the crop, and then convert it to liquid fuels to power our cars without the need for gasoline.

Environmental groups protested that this calculation did not include the indirect effects of needing land to grow crops for fuel as well as food.

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.

The wild shrub could then become a «sustainable cash crop,» Joos believes, and a fuel for the future.

Now biodiesel entrepreneurs in tropical zones in Africa and India are buying up land, starting plantations and looking forward to making fuel from the seeds, which, they argue, will be better for the global environment and economy than conventional biofuel crops grown in temperate climates.

At his institute, agronomists will work on identifying or creating the fuel crop of the future, while bio-prospectors will hunt for enzymes that quickly convert tough, indigestible cellulose into sugar.

IPCC scientists have suspected for a decade that aerosols of smoke and other particles from burning rainforest, crop waste and fossil fuels are blocking sunlight and counteracting the warming effect of carbon dioxide emissions.

Instead of processing commodities that might otherwise be used for food, next generation fuels can be produced from dedicated energy crops like switchgrass, to the non-edible parts of corn plants, to unmarketable wood from the lumber industry — taking resources that would otherwise go to waste and using them to fuel our energy independence.

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

This Bioenergy Technologies Office helps solve this equation by supporting research on which bioenergy crops to grow and how to grow them; technologies designed to convert biomass to fuels and other products; and analysis methods for determining how well the production processes achieve their economic and environmental goals.

The new study estimates land available for growing biofuels — crops such as corn or sugarcane that can be converted to fuels - at between 56 and 1035 million hectares, compared to previous estimates of 320 to 1411 million hectares.

Clemson University's Institute of Translational Genomics has been awarded $ 6 million by Advanced Research Projects Agency - Energy as one of six Transportation Energy Resources for Renewable Agriculture (TERRA) projects totaling $ 30 million that are seeking to accelerate the development of sustainable energy crops for the production of renewable transportation fuels.

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 fFuel» 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 ffuel production (usually ethanol) affected the costs of food and fuelfuel.

Anyone who wants a basic understanding of food economics, and how that is impacted by a wide number of factors including using crops for the production of fuel would benefit from this book.

Businesses that value predictability for planning routinely hedge: airlines and shipping companies worried about fuel costs, farmers hedging against crop prices falling, etc..

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.

This works for biofuels, as growing crops absorb atmospheric CO2 and convert it to sugars, oils, etc., leading to no net change in atmospheric CO2 when the fuel is burned — but it does not work for coal, oil or natural gas, however.

There is probably a decent legal argument that the fossil fuel industry could be held legally responsible for a certain fraction of recent crop losses due to Midwest flooding, for example — especially since they've waged a very well - documented multi-decade PR campaign that attempted to hide and distort the evidence for global warming.

As trees disappeared, straw and other crop residues were used for cooking fuel.

I would greatly appreciate some reflection from you on the new shale gas assessment from EIA (global estimates for areas that have been surveyed) against the trends for food crops, including cassava, going to make fuels, as reported today by Elisabeth Rosenthal in The Times.

Today we harvest crops for four main purposes: to feed animals, feed humans, generate fuel, and make paper and construction materials.

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.

[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.

Biomass - to - energy is a sustainable solution that can reduce greenhouse gas emissions to the atmosphere, assuming that secondary and tertiary biomass is used (rather than crops grown primarily for biomass fuel) to substitute the use of fossil fuels.

Growing crops for fuel is an extraordinarily inefficient way to produce energy for transportation.

In Indonesia, 60 percent of national greenhouse gas emissions come from land - use change, in part, fuelled by the growing demand for palm oil and agricultural crops.

It is used in power generation, primarily for cooling thermal power plants; in the extraction, transport and processing of fuels; and, increasingly, in irrigation to grow biomass feedstock crops.

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.

Gelfand, I., S. S. Snapp, and G. P. Robertson, 2010: Energy efficiency of conventional, organic, and alternative cropping systems for food and fuel at a site in the U.S. Midwest.

These include forest industry byproducts, sugar industry byproducts, urban waste, livestock waste, energy crops, crop residues, and urban tree and yard wastes — all of which can be used for electrical generation, heating, or the production of automotive fuels.