When it's not windy, which is rare, it can be extremely quiet and you can almost hear your own heartbeat.

Have you ever been on top of a glacier?

Visually it can look like what you might imagine the moon is like...

Well, this guy has.

Jason Box is a glaciologist,

which means he knows a lot about, you guessed it, glaciers, and how climate

change is affecting them.

Back in September, Jason and his seven-member crew were camping near the southern tip of the Greenland ice sheet.

It's a rough kind of blue slippery surface and so you had better wear some kind of traction on your feet.

And let me tell you, setting up camp on a glacier sounds hard.

We had this challenge of how to anchor our tents. You can't just bang in a stake because it's solid ice, so we had to drill these little holes and thread a cord through and then you've established one of these anchors and each tent needs like, you know, eight of these

these and so we were doing that for a couple of hours, just, you know, as the sun is setting.

Jason was there to check on the automated climate recorders he'd installed during previous trips.

They're essentially mini weather stations that track the temperature of the ice sheet.

But that afternoon, Jason got word of some bad weather on the horizon.

You know, we could see it in the sky, these wavy dark clouds.

They're called aspiritus clouds. They make the sky look like an ocean.

They're associated with intense weather, strong winds and rainfall.

It was the first indication that a storm was coming. We just rushed out.

The last place you want to be during a crazy storm is on top of a glacier.

Jason and his crew needed to leave immediately.

So they yanked up those stakes,

...