Addressing global warming, however, is a highly complex and daunting endeavor. Many climate experts have urged the world to stabilize greenhouse gas concentrations in the atmosphere around 450 to 550 parts per million (ppm)—that is, no more than 450 to 550 units of greenhouse gases for every million units of air in the earth’s atmosphere. This approach, experts say, could keep average global temperatures at no more than 3.6° Fahrenheit (2° Celsius) above preindustrial levels, which could avoid some of the worst, irreversible consequences of climate change. (more…)
Although some scientists and critics still dispute that human caused greenhouse gases are causing climate change, the majority of s ...
Climate change caused by the enhanced greenhouse effect is one of the most significant global environmental issues. Increased emiss ...
Options for dealing with the threats of climate change include both adaptation to inevitable changes and mitigation, or lessening, ...
Scientists study Earth’s climate not just from observation but also from a theoretical perspective. Modern-day climate models succe ...
Earth’s climate is a complex system of interacting natural components. These components include the atmosphere, the ocean, and the ...
Because different studies have different system boundaries and parametric assumptions, the studies described in Section 7 resulted in different magnitudes of changes in energy use and GHG emissions. The GREET model was used to develop the results presented in this section. In conducting the analyses with the GREET model, key assumptions were specified by taking into account the results from various completed studies. Because some of the vehicle/fuel systems are emerging technologies and are not in the marketplace yet, all technologies were analyzed for the time frame around 2010, so that both emerging technologies and technologies already in the marketplace can be compared within the same period. (more…)
The fuel cycle for a given transportation fuel includes the following processes: energy feedstock (or primary energy) product ...
The combination of well-to-pump results and the energy use and emissions associated with vehicle operation (also called the pum ...
The spark-ignition and compression-ignition engine and internal combustion engines technologies that are currently employed in ...
The energy efficiencies of various fuel production pathways from well to pump. The efficiencies shown are defined as the energy ...
A variety of information programs exist in the major automobile markets to assist potential purchasers of new cars in comparing fue ...
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient vehicles (or to penalize purchasers and owners of fuel in efficient vehicles) by tying vehicle purchase and/or ownership taxes either directly to fuel economy or to vehicle features associated with fuel economy (e.g., engine displacement). (more…)
We know of no studies that have examined vehicle taxation incentives programs elsewhere in the world, but it seems likely that ...
This latter form of new car taxes can actually serve as an impediment to higher fuel economy to the extent that increased energ ...
Economists have overwhelmingly favored fuel taxes over fuel economy standards as a means to reduce fuel or gasoline consumption ...
Whatever the actual motivation, American policymakers perceived a need after 1973 to restrict automobile and light truck cons ...
Under both former President Bush and new President Obama, the U.S. government has vowed to reduce reliance on imported oil. The ...
This latter form of new car taxes can actually serve as an impediment to higher fuel economy to the extent that increased energy efficiency is attained with high-cost technology, such as continuously variable automatic transmissions, hybrid electric vehicles drive trains, and variable valve controls, and such taxes add to the cost of these technologies. (more…)
We know of no studies that have examined vehicle taxation incentives programs elsewhere in the world, but it seems likely that ...
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient v ...
Economists have overwhelmingly favored fuel taxes over fuel economy standards as a means to reduce fuel or gasoline consumption ...
Whatever the actual motivation, American policymakers perceived a need after 1973 to restrict automobile and light truck cons ...
Under both former President Bush and new President Obama, the U.S. government has vowed to reduce reliance on imported oil. The ...
We know of no studies that have examined vehicle taxation incentives programs elsewhere in the world, but it seems likely that there are a number of tax regimes that affect vehicle fuel economy, albeit indirectly.
Aside from new car tax credit for new car aimed specifically at fuel economy or associated vehicle characteristics, (more…)
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient v ...
This latter form of new car taxes can actually serve as an impediment to higher fuel economy to the extent that increased energ ...
Economists have overwhelmingly favored fuel taxes over fuel economy standards as a means to reduce fuel or gasoline consumption ...
Whatever the actual motivation, American policymakers perceived a need after 1973 to restrict automobile and light truck cons ...
Although the automotive industry is a vigorous sponsor of research and development in vehicle efficiency technology—worldwide, ...
As a result of high and rising costs of fossil fuels and fossil fuels affect global environment concern , and by the reduction of greenhouse effect gases from burning causes (Kyoto Protocol), the heat recovery gain importance growing. A heat exchanger absorbs a significant portion of the heat energy of the gases generated during combustion of solid fuel, liquid and gas in the smelting process, heating, roasting, and drying. (more…)
In these regenerators the heat energy transfer between primary and secondary fluid is primarily by radiation and its installati ...
Heat has a enormous influence in our daily lives. Heat quantity exposed in our live has related to the foods we eat, the temper ...
The product gas can be burned in boilers to generate heat and raise steam, in internal combustion engines to generate electricity a ...
The leading automotive brands are being focused to produce electric vehicles because they believe they represent a harmony to the e ...
Drying is one of the most important post harvest steps. It enhances the storage life of the crop products, minimizes losses during ...
Throughout the British energy crisis there were some grounds evident that more drivers drove more slowly to conserve their vehicle fuels. This is the basis facts that showed clearly during crisis circumstances, drivers are willing to change and adopt these types of driving strategies: (more…)
A variety of information programs exist in the major automobile markets to assist potential purchasers of new cars in comparing fue ...
The European Automobile Manufacturers Association (ACEA) has offered, and the European Commission (EC) has accepted, a voluntar ...
Whatever the actual motivation, American policymakers perceived a need after 1973 to restrict automobile and light truck cons ...
Although the focus of many policy studies of climate change is on establishing the causal links between anthropogenic systems, emis ...
Economists have overwhelmingly favored fuel taxes over fuel economy standards as a means to reduce fuel or gasoline consumption ...
Whatever the actual motivation, American policymakers perceived a need after 1973 to restrict automobile and light truck consumption of gasoline. How The Energy Policy and Conservation Act of 1975 imposed Corporate Average Fuel Economy (CAFE) standards on all auto and light truck manufacturers who sold vehicles in the Unite d States. The weighted average of miles per gallon (MPG) for each manufacturer’s car sales was required to be at least 18 MPG by 1978 and 27.5 MPG by 1985. Manufacturer s that failed to meet this standard were to be fined $50 per vehicle sold for each gallon (of MPG rating) by which they failed. (more…)
A number of countries have vehicle tax incentives programs designed to reward purchasers and owners of alternative fuel-efficient v ...
Economists have overwhelmingly favored fuel taxes over fuel economy standards as a means to reduce fuel or gasoline consumption ...
We know of no studies that have examined vehicle taxation incentives programs elsewhere in the world, but it seems likely that ...
This latter form of new car taxes can actually serve as an impediment to higher fuel economy to the extent that increased energ ...
Analysis of future light-duty transportation energy use require estimates of the impact of fuel prices on travel and fleet fuel ...