Back in 2020, the CEO of Delta Airlines made a big announcement.

Starting March 1st, Delta Airlines will become the first airline to go fully carbon neutral

on a global basis.

So Delta Airlines announces it's going to spend a billion dollars on sustainability efforts.

The part of Delta's billion dollar plan was buying something called carbon credits.

These credits are a way for companies to fund green energy projects without having to

cut down on their own emissions or change how they operate their businesses.

As an airline, Delta produces a lot of emissions because commercial airplanes rely so heavily

on jet fuel.

Our colleague Shane Schiflett started looking into the carbon credits that Delta bought

and the renewable projects they support.

One of the projects that I came across early on is this wind farm in India.

It's in a southwestern state of India.

They're just south of a forest actually where wild elephants have been spotted forage

and bamboo.

And in 2010, they started construction on a string of wind turbines, 34 wind turbines

that were kind of up on this hilly area, overlooking some villages.

And so this wind farm was up and running starting in about 2011 and it had been running

profitably and productively ever since then.

Carbon credits are supposed to go to projects that wouldn't be financially sustainable otherwise.

But the credits Delta bought weren't doing that.

The wind farm had been in operation for 10 years and this made Shane question whether

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