We're sitting on that beautiful little Danish post yacht, which a wooden boat without the engine.

And this is my house, my living area.

I talked to Andreas Lackner

aboard the little sailboat he lives on in a shipyard

on the wind-swept coast of the Netherlands.

How big is this boat?

We have one full square meter of standing room.

You got a little heating stove.

You got a little range to boil water.

Andreas fell in love with sailing when he was in his 20s,

but not because he liked to race yachts or hang out in fancy marinas.

The reason he learned to sail was so he could go across an ocean without leaving any carbon footprint.

I wanted to go to South America and not use a plane.

That was the only reason.

I did sail before much.

Really?

And so you just learned to sail on the tall ship?

On that first wind-powered voyage across the Atlantic,

Andreas would sit up in the rigging and look at other ships crossing the ocean.

And they were mostly commercial cargo ships,

container ships and tankers. They ran on oil instead of wind, and they emitted lots of carbon

and other nasty stuff into our atmosphere. It was up in that rigging that Andreas decided what

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