Hydrogen is high in energy, yet an engine that burns pure hydrogen produces almost no pollution. NASA has used liquid hydrogen since the 1970s to propel the space shuttle and other rockets into orbit. Hydrogen fuel cells power the shuttle's electrical systems, producing a clean byproduct - pure water, which the crew drinks. A fuel cell combines hydrogen and oxygen to produce electricity, heat, and water. Fuel cells are often compared to batteries. Both convert the energy produced by a chemical reaction into usable electric power. However, the fuel cell will produce electricity as long as fuel (hydrogen) is supplied, never losing its charge. Fuel cells are a promising technology for use as a source of heat and electricity for buildings, and as an electrical power source for electric motors propelling vehicles. Fuel cells operate best on pure hydrogen. But fuels like natural gas, methanol, or even gasoline can be reformed to produce the hydrogen required for fuel cells. Some fuel cells even can be fueled directly with methanol, without using a reformer. In the future, hydrogen could also join electricity as an important energy carrier. An energy carrier moves and delivers energy in a usable form to consumers. Renewable energy sources, like the sun and wind, can't produce energy all the time. But they could, for example, produce electric energy and hydrogen, which can be stored until it's needed. Hydrogen can also be transported (like electricity) to locations where it is <b>...</b>
In the News:
 CBS News | Tim Pawlenty: Obama "sat on his hands" on drilling CBS News Obama and his EPA won't let us drill here or build a refinery here. We won't have jobs here that we could have had by drilling and refining here. We could have sold ourselves the oil instead of sending jobs and money overseas. ... and more » |
Candidates talk environment InsideHalton.com “Generally, we need to be reducing our carbon emissions, we need to be moving into alternative fuel sources and making sure we are forward-thinking and investing in the types of technologies that are going to get us there,” she said. ... and more » |
Morning Must Reads: Commission TIME (blog) Those pensions had been underfunded for years. Anyone with an ounce of sense could figure you can't continue to grow spending at every level of government and guarantee ridiculous benefits forever. But they do just hand them tax dollars. ... and more » |
Obama: Creates gas price spike task force. Transcript Chicago Sun-Times (blog) The federal government has the biggest fleet of automobiles of anybody, any organization. So what we've said is let's make our fleet 100 percent alternative-fuel cars. (Applause.) And what that does, that creates a big market for American-made cars ... and more » |
 Politico | Change in direction of federal spending Politico Don't just squander it or think you can wait until you have ALL the power. Find your spine and your huevos. Stand up for us. Stand firm. We will support you. If you can't or won't save this country, move aside and let someone else do the job. ... and more » |
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