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It's new, but like the internet, it's also revolutionary.

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Don't invest unless you're prepared to lose all the money you invest.

This is a high-risk investment and you should not expect to be protected if something goes wrong. In 2016 I got a ride on the Pothold Highway north out of Manaus Brazil in the Central Amazon.

After an hour, my driver shifted down and swung our pickup onto a dirt road.

For the next 20 miles we dodged axle-deep ruts and fallen trunks.

This was my first of many subsequent visits to a rustic ecological station known simply as ZF2.

I'm Daniel Grossman and this is science quickly.

I'd come to see the early stages of what's been called one of the most remarkable and highly anticipated climate experiments.

Starting in 2013, researchers had staked out two circular plots,

each the size of a baseball diamond,

a vine-draped 10-story tall trees.

They'd measured and tagged every trunk

bigger than a fence post.

After years of anticipation, the experiment had raised its sales and seemed ready to launch.

And then it ran out of cash.

It was put on hold for half of the next decade, but finally now it's back and its equipment

is about to be turned on.

...