A lot of tech CEOs talk about changing the world. Luke Isman wants to hack the planet.

My name is Luke Isman and I'm the co-founder of Make Sunsets.

What is Make Sunsets? Make Sunsets is a startup that is cooling

Earth by launching reflective clouds into the stratosphere.

Luke's idea is to pump particles into the sky that would deflect the Sun's rays and bring

temperatures down, kind of like a giant mirror above the Earth.

I don't think anyone has intentionally or at least publicly done modification of the

stratosphere before, so.

This idea is called solar geoengineering. It's a controversial field of science.

But to tackle climate change, some scientists think geoengineering could buy us time to

wean ourselves off of fossil fuels. Others are skeptical and worry there could be unintended

consequences.

That hasn't stopped Luke. His startup Make Sunsets has raised $750,000 and not only does

Luke think this idea could help save the planet. He also thinks it could make him a lot of

money.

The value of creating a thermostat that we can tune at will for the Earth is so great.

We have to capture so little of that value to create quite a profitable and viable business.

If more competent people want to do it, we'll do it ourselves.

Welcome to the journal, our show about money, business and power. I'm Ryan Knutson.

It's Wednesday, March 29th.

Coming up on the show, the controversial push to cool the Earth.

The scientists of today are creating the next big thing.

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