A crow is as black as coal.

Coal is not always black.

Coal is a fossil fuel.

Here's a piece of coal.

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

Coal. Hint of silt.

When that gas blows up, people die.

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

Now, what does this have to do with energy?

Coal dust.

More coal doctor.

Bioenergy is oil.

The coal is burning.

Massive coal reserves.

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?

Coal consists mostly of carbon.

They substituted coal for oil.

Geologists scoured America.

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

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

They burned some coal.

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

it's a hot coal.

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

Then he hit her three or four times with a chunk of the lamp base. Yeah, I know. it was black marble.

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

(Laughter)

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

The coal in the stove is burning.

The coals are burning red.

Of those, only nuclear and hydro are green.

Much of the high quality anthracite coal is gone,

Let me say that again.

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.

English economist William Stanley Jevons realised that Better steam engines made coal a more cost effective fuel source, which led to the use of more steam engines, which increased total coal consumption.

Petroleum was replacing coal as fuel.

This country is rich in coal.

We have used up the coal.

One of the coal industry's ads around Christmas was this one.

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

And then I asked myself the question.

However, Global coal production may peak before 2040.

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