Coal is a fossil fuel.

Here's a piece of coal.

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?

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.

And so far there are only three major sources of that coal and gas, hydro electric, which in most places is maxed out and nuclear.

The coal is burning.

Massive coal reserves.

Give me some sense of the numbers of new coal fire generating plants.

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

Shale is an exceptionally poor fuel, pound for pound containing about one third the energy of a box of breakfast cereal.

The coal belt in Northern China,

Now, from an environmental standpoint, the main thing you want to look at is what happens to the waste from nuclear and from coal, the two major sources of electricity.

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.

A crow is as black as 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.

It leaves 25 or 30 percent for oil, gas, coal, nuclear, or whatever.

Further on, he came to understand the coal, the use of the coal, and he used coal, still, again, burning.

Coal is not always black.

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.

Because remember, this is what drives the prosperity in the developing world in the villages and in the cities.

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.

largest emitters, along with China.

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.