We're working close to the top of Everest.

Were no other scientists work.

The big goal off this National Geographic project is to collect scientific information about climate change and how much lay shires were changing.

What glaciers don't lie.

The size they are is a consequence of their environment.

Things that have captured in them thing.

They're the truth.

Climate change is the most important security issue of the 21st century.

It's not just a change in temperature as a change in precipitation.

Flooding, storm patterns, air quality, water quality.

I just like the Himalayas, have experienced changes that are higher than the average global rate.

My involvement has Bean primarily being able to answer.

A very big question is what is going on today, something that's part of a natural cycle or not?

You do that by getting as long a record is you can and seeing if what's going on today is markedly different than what's happened in the past.

Yeah will be collecting ice cores, which capture past temperature precipitation, storm patterns and biological productivity layer by layer going back through time.

Ice cores are the most robust tool that we have for looking at past climate.

My role here is collect ice core and snow samples on the way up from Khumbu Glacier across Cuba.

Icefall a fucked up South called 8000 m.

If it's possible, E, we're going to use drill that you can compare to to with teeth on the end things scraping ice when it filled tube bottom part of the drill will collect the ice core itself.

Ice core stays in the tube.

Thank you.

I don't care how fantastic acclimate you are.

Without the Sherpas, all of this equipment wouldn't get up to the various camps.

We're going to depend heavily on them to get the ice scoring.

Thank you for All right.

So you guys are for girls to me.

I think everything is here.

Er the Jim junk.

It'll be a real stress on everybody at 80 m in south call Morning, guys.

Early morning working.

And then same day, going to camp two.

Okay, but that that is a plan.

Look up there.

Thanks.

Yeah, Okay.

30% relative humidity.

13 m per second to 70 one afternoon Negative.

27.9.

44%.

13 m per second.

Looks pretty good.

Excellent.

It sounds like you guys had a bit longer time in the icefall and obviously getting up to camp two in the heat than we had anticipated.

When you guys left at three.

AM Yeah, way.

Our camp for south cold going three minutes from here.

There is a beautiful blue eyes on.

I'd love to drill and compare age.

You're going by that rock?

Uh, there because that's the talk.

That's the blue eyes.

Yes, way are limited by time.

So we try to use all the entire time to collect as much as possible because we're limited by oxygen on temperature.

So I think the maximum you can stay there about two hours no more.

We'll try to go as deep as possible.

Thank you.

Okay.

Yeah.

Is the highest located I score.

I don't know.

The previous one was just about 7000 m.

This one is about 8000 m above sea level.

Come, all my trip is about this.

It's have we done?

Yeah, we're all talking.

You're happy Absolutely.

I'm extremely happy.

We've lived in a dream world for a while.

We've assumed that the way we have evolved in the last 100 years is a good way for humans to live.

Yeah.

My biggest hope for this expedition is that what we find here will awaken people, even Mawr.

So the importance of climate change.

Okay.

Oh.