Question 2 of 21

Which of the following is one method of clean coal technology?

... Carbon Capture and Storage, or CCS, is a mainstay of clean coal technology.

Question 3 of 21

In 2009, how much money did the U.S. Department of Energy invest in clean coal energy?

... In 2009 alone, the U.S. Department of Energy invested $1 billion in clean coal technology.

Question 4 of 21

What U.S. Department of Energy program is looking into the feasibility of co-producing electricity and hydrogen?

... FutureGen, a relatively new division of the U.S. Department of Energy, is researching the co-production of electricity and hydrogen.

Question 5 of 21

What fossil fuel is found in "ice cages?"

... Methane hydrates are encased in ice-like cages found in gigantic deposits deep beneath the ocean's floor.

Question 6 of 21

Why were methane hydrates once considered a nuisance?

... Methane hydrates are known to clog natural gas pipelines. When scientists discovered they are a possible source of alternative energy and revenue, attitudes shifted a bit.

Question 7 of 21

What is one concern regarding drilling for methane hydrates?

... Scientists are worried that the deep-sea drilling could destabilize the continental shelf, and cause a massive underwater landslide.

Question 8 of 21

What do geologists use to locate stores of natural gas?

... Seismic surveys are used to capture data about possible stores of natural gas.

Question 9 of 21

How many cars worldwide are fueled by natural gas?

... There are 11 million cars powered by natural gas worldwide. Experts believe the number will steadily increase as these cars become more affordable.

Question 10 of 21

What type of CCS technology captures C02 after fossil fuels are burned?

... Postcombustion carbon captures C02 after burning, which reduces the number of toxins released into the atmosphere.

Question 11 of 21

What percentage of energy consumed in the United States comes from oil and natural gas?

... A whopping 60 percent of energy consumed in the United States comes from natural gas and oil.

Question 12 of 21

What do fuel cell cars run on?

... Hydrogen gives fuel cell cars their juice. More specifically, hydrogen is converted into electricity, which charges the motor.

Question 13 of 21

What type of technology is used in fuel cell cars?

... Fuel cell stacks convert hydrogen and oxygen to electricity, which in turn powers the fuel cell car's engine. That's why fuel cell cars purr along so nicely; electric motors make no noise.

Question 14 of 21

What is one drawback of fuel cells cars?

... Hydrogen fueling stations are few and far between. In fact, the majority of hydrogen fueling stations are scattered throughout California.

Question 15 of 21

What does NETYL stand for?

... NETYL is the acronym for the National Energy Technology Laboratory, which is a division of the Department of Energy. NETYL is focused on finding ways to create better technologies for harvesting fossil fuels in a cleaner and more sustainable manner.

Question 16 of 21

What clean energy producer can be extracted from clean coal?

... While the debate rages on over the truth behind clean coal, perhaps its problems will one day be offset by the fact that we can extract hydrogen, which emits no carbon emissions, from the rock.

Question 17 of 21

Where is the C02 extracted during CCS stored?

... After the C02 has been extracted from the coal, it is transported to specific geologic and oceanic storage facilities where it is injected under the Earth's surface.

Question 18 of 21

What is the transportation process of CCS?

... C02 is transported to storage facilities via miles and miles of underground pipes. Proponents of CCS point out that in many cases, existing pipes can be used, avoiding the cost of building new pipe lines.

Question 19 of 21

What is the goal of central hydrogen production?

... Central hydrogen production will enable the co-production of electricity and hydrogen from coal. There are two methods of co-production: Central Hydrogen Production and Alternate Hydrogen Production.

Question 20 of 21

Most of the hydrogen produced in the U.S. comes from which three states?

... California, Louisiana and Texas are the largest producers of hydrogen in the United States. What little hydrogen that is imported comes from Canada.

Question 21 of 21

What injects vibrations under the surface of the Earth?

... Seismic truck vibrators are parked on large pads over a specific spot. They send vibrations under the surface of the Earth and collect data about stores of natural gas.

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