Hello and welcome to Business Daily. I'm Justin Rolach.

Coming up on the day of the UN Climate Change Summit in New York, I speak to its keynote speaker.

These meetings are so incredibly important because if we act now, then we still have everything in our own hands.

If we wait, then I mean, we could pass several tipping

points that we cannot go back from. Greta Tunberg is spearheading a global youth movement that

aims to completely transform the way our economy works. So what does the fossil fuel industry make of that?

Instead of pointing the finger all the time at corporate executives,

let's start pointing the finger at public officials

who lack the courage and the responsibility and accountability

to do what matters, because nothing's happening on that front.

Turning up the heat here on Business Daily on the BBC.

Bird song. It's 6.30 a.m. and I'm in the park near my home. It's idyllic. I could almost forget I'm in the centre of one of the world's great cities.

It's hard to imagine sitting here that our planet stands on the edge of ecological disaster.

Yeah, that's the message that's being shouted increasingly loudly by the world's climate scientists.

And it's a message that has also been repeated calmly but firmly by this young woman.

My name is Greta Thunberg.

I have not come to offer any prepared remarks at this hearing.

I am instead attaching my testimony.

It is the IPCC Special Report on Global global warming of 1.5 degrees Celsius,

because I don't want you to listen to me. I want you to listen to the scientists. And then I want you to take real action.

That was the 16-year-old climate change activist addressing the U.S. Congress in Washington last week, but it came shortly before this.

What do we want?

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