Coal is not always black.

A crow is as black as coal.

More coal doctor.

When that gas blows up, people die.

Coal is a fossil fuel.

But as you think of coal, this is what burned wheat kernels look like.

Bioenergy is oil.

When the Industrial Revolution started, the amount of carbon sitting underneath Britain in the form of coal was as big as the amount of carbon sitting under Saudi Arabia in the form of oil.

Here's a piece of coal.

The coal is burning.

But I brought along here a lump of coal right here, one lump of coal.

When this happens, they're compressed under tons of pressure, and turned into carbon based fossil fuels

Petroleum was replacing coal as fuel.

Coal. Hint of silt.

You burn the gas, that radon's being released. Nobody counts that radon against the gas.

The reason why is because of the radioactive releases from coal.

Coal consists mostly of carbon.

This is the story of how Harriet came to pay attention.

Now, what does this have to do with energy?

Coal dust.

They substituted coal for oil.

Geologists scoured America.

They burned some coal.

China had been the most powerful nation in the world and they came to the United States in search of coal, and they found it, and, in fact, they found lots of it right here.

And then I asked myself the question.

Massive coal reserves.

So I want you to go there.

Oil is a problem, and coal is the most serious problem.

(Laughter)

However there is a political battle in our country.

The coal was glowing in the fire.

The thread that links them all our addiction to carbon based fuels,

The coal belt in Northern China,

The argument that it's a bridge fuel makes sense, because the amount of CO2 per unit of energy is lower than oil and coal, correct?

The coal in the stove is burning.

The coals are burning red.

We have used up the coal.

We have used our ration of coal for the week.

But in the meantime, for the next decade at least, the name of the game is hydrocarbons.

it's a hot coal.

This country is rich in coal.

However, Global coal production may peak before 2040.

As of 2007, coal generates 48.5 of U.S. electricity.

We have used up the coal.

And so the question is Can you actually get that to zero?