Energy Return on Energy Invested.

The first tunnels date back to 60 B.C.

Here's from Big Sur, like they're little jewels.

Hands weathered and worn and proud of it.

And as we sit, exchanging free ideas with each other, there are still people mining coal in order to power the servers, extracting the minerals to make all of those things.

Digging Hassle

Here's from Big unclear , like they're little jewels.

Gerty, what is the status on Harvester 3?

But he got great terms on it.

Separation technologies are going to be extremely important.

This is how you farm oil.

You also have a buffer zone that's 17 square kilometers.

Tura Caves

The crate is at the bottom of Ryder's Quarry.

All harvesters running smoothly.

Harvesters are fine.

In my time, where I come from, this is a simple mining vessel.

I know about the dig.

Near one of the stalled harvesters...

Because you've got to include the man who grew the coffee, which was brewed for the man who was on the oil rig, who was drilling for oil, which was going to be made into the plastic, etc.

You can see some of the major fossil sites that we've been working in the north.

Your diamond you've all heard, probably seen the movie Blood Diamond.

That's a person down there by the wheel.

So I looked up a plastic so I decided that I could mine some of this modern day rock.

In Alberta people work nonstop, 24 hours by seven to extract as much oil as they can.

I'm just passing the last of the harvesters. Looks like John.

Great miners and craftsmen of the mountain halls.

This is incredible!

You had an accident out by one of the harvesters.

It's mined by armed gangs using slaves, child slaves, what the U.N. Security Council calls blood minerals, then traveled into some components and ended up in a factory in Shinjin in China.

I kept thinking about Ryder's Quarry. You know the place?

Tungsten carbide drills! What the bloody hell's tungsten carbide drills?

But we only have two working harvesters now.

As the easy to find oil was pumped first, exploration moved into deep waters, or distant countries, using increasing amounts of energy to do so.

Why is there a bio diversity crisis?

Well, you look at modern hunter gatherers like aboriginals, who quarried for stone axes at a place called Mount Isa, which was a quarry owned by the Kalkadoon tribe.

Bag him up and we'll get started on repairs to the harvester.

Video That's what we call the seven minutes of terror. So the plan is to dig in the soil and take samples that we put them in an oven and actually heat them and look what gases will come from it.

This is about 100 trillion gallons of crude oil still to be developed and produced in the world today.

Shane took him down to the quarry.

And here's a different way of mining coal.

The objective here was to explore abandoned mines.

In 1849, in that Gold Rush, they took over 700 million worth of gold out of California.

A deepwater oil platform near the Indonesian archipelago.

So what do we do? We call up the doctor of dust, and there is such a person.