If you've ever driven yourself crazy, trying to squeeze the last few drops of shampoo out

of the bottle, then you probably have some idea of a dilemma facing oil companies.

How do you get all the oil out of a well, except instead of a plastic bottle, the oil is stuck

in rocks, thousands of feet underground.

Like this rock, now in geologist Bob Trenton's lab at UT Permian Basin in West Texas.

See these little holes here?

Those little holes are where the oil lives.

After the first gush of oil, it gets harder and harder to squeeze more out, even though

there's still lots of oil stuck underground, which kind of makes sense because oil is sticky.

You chase the oil on your car, which nobody does anymore, but you get oil all over your

hands.

You can use a rag to get most of it off, but it's going to stay there until you use a detergent.

Now it turns out that a great way to get oil unstuck from those rocks is to use carbon

dioxide.

You pressurize it, inject it deep underground, and you can squeeze more oil out of old wells.

It's kind of like Mr. Clean.

It gets in there and it scrubs some of the oil off the pores and produce more oil.

Great, but this is where things get a little weird.

You see, there is technology, technology that until recently was seen as pretty fringy,

that makes it possible to suck carbon dioxide out of the sky.

It's called direct air capture.

And major environmental groups say this technology, that is pulling carbon, we've already emitted

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