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Some people will suggest we need to develop hydrogen as a source of transportation fuel.
Although traditionally used in war and religious ceremonies, in the 18th and 19th centuries, the Asian elephant was used as a source of transportation for logs and people, primarily in the logging industry [ 1, 3– 6].
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Production of biofuels from renewable resources such as cellulosic biomass provides a source of liquid transportation fuel to replace petroleum-based fuels.
Ethanol, he complained, probably did not reduce emissions of greenhouse gases by much, and would never become a major source of transportation energy unless it could be competitive with oil on an unsubsidized basis.
For one, you have to trek your clothes to and from this place — in metropolitan centers where walking/biking is a primary source of transportation, this becomes compounded.
The ban, if enacted, would not only throw a monkey wrench into the military's plans to go green but also stunt commercial development of a homegrown source of transportation fuel.
These roads provide a convenient source of transportation for persons traveling to Ebola health facilities, which may have enabled the rapid and extensive spread of Ebola virus infection in Sierra Leone through person-to-person contact.
For over 12,000 years, people have depended on the Missouri and its tributaries as a source of sustenance and transportation.
Add to this picture vast numbers of individuals and industries relying on the water to serve as their fishing and dumping grounds as well as a source of drinking water, transportation, recreation, and power, and it's no wonder the U.S. government alone has about 140 programs devoted to the care and maintenance of the Great Lakes.
Others may own an older car, and rent when they need a more reliable source of transportation.
One recognized possibility for a renewable, clean source of transportation fuels is solar radiation collected and converted into useable forms of electrical and/or chemical (hydrogen) energy.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com