Okay. We had a team out watching this glacier, and we recorded the biggest calving event that's ever been put on film.

A 400 foot tall calving face breaking off.

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This is a view of what's called the calving face.

That's the retreat of this glacier.

Helicopter in front of the calving face for scale, quickly dwarfed.

We're now at the Columbia Glacier in Alaska.

Brown Glacier, Heard Island, had retreated by 50 metres over three years, with the lower slopes of the glacier having lost as much as 11 metres in thickness, while Collins Glacier, King George Island, retreated by some 200 metres between 1987 and 2005.

This is pitched on a glacier at 17,500 feet.

The one glacier up in Greenland that puts more ice into the global ocean than all the other glaciers in the northern hemisphere combined is the Ilulissat Glacier.

No. It was retreating through the winter because it's an unhealthy glacier.

This glacier has doubled its flow speed in the past 15 years.

A mile of retreat in 75 minutes across the calving face, in that particular event, three miles wide.

But this glacier caved into the water and a seal got on it.

And to the right hand side of us was this great Khumbu Glacier.

According to scientists, in 100 years all the mountain glacier will be gone.

We just downloaded these pictures a couple weeks ago, as you can see. June 25th, monster calving events happened.

When I meet a glacier for the very first time, what do I do?

And all the way along the glacier we saw these big pools of melting ice.

If you look in the middle background, you can see the calving face bobbing up and down like a yo yo.

We have some cameras on the south edge of the Ilulissat, watching the calving face as it goes through this dramatic retreat.

Like Al Gore told you, two billion people live on the water from the glacier of Himalaya.

You see the glacier flowing in from the right, dropping off into the sea, camera shooting every hour.

This lake has been formed in the last couple of years because of the melting of the glacier.

This very basic shift in my physical orientation helped me shift my perspective in relation to the glacier.

To give you a little bit of a sense of scale, that calving face in this picture is about 325 feet tall. That's 32 stories.

The calving face is the wall where the visible ice breaks off, but in fact, it goes down below sea level another couple thousand feet.

The Himalayan glaciers have not stopped losing mass, although they are losing it at a somewhat slower rate than before. Evidence collected on 466 glaciers by the Indian Space Applications Center from 1962 to 2004 shows a 21 loss of glacier area and a 30.8 of glacier volume.

And once again, it's this invitation that asks people to lay down on the glacier and give it a hug.

The calving face is four and a half miles across, and in this shot, as we pull back, you're only seeing about a mile and a half.

The main stem, the main flow of the glacier is coming from the right and it's going very rapidly up that stem.

The block was three fifths of a mile deep, and if you compare the expanse of the calving face to the Tower Bridge in London, about 20 bridges wide.

They actually have these buses that drive up and over the lateral moraine and drop people off on the surface of the glacier.

But, in any case, the deflation of this glacier since 1984 has been higher than the Eiffel Tower, higher than the Empire State Building.

And so since we use devices to figure out how to relate to the world these days, I actually made a device called the Glacier Embracing Suit.

For India, the Chinese incursion also threatens its access to the 6,300 meter high Siachen Glacier, to the west of Depsang. Pakistan claims the Indian controlled glacier, which, strategically wedged between the Pakistani and Chinese held parts of Kashmir, served as the world s highest and coldest battleground (and one of the bloodiest) from the mid 1980 s until a cease fire took effect in 2003.

And so glaciers are these magnificent beings, and there's lots of reasons to be obsessed with them, but what I'm particularly interested in is in human glacier relations.

Research networking and collaborative efforts in the areas of glacier monitoring, climate studies in Antarctica, and regional databases for monitored environmental parameters are important developments for many Parties.

I was on Bowman Lake in Glacier National Park, which is a long, skinny lake with sort of mountains upside down in it, and my partner and I have a rowing shell.

And these cameras are positioned on rocks on the sides of the glaciers, and they look in on the glacier from permanent, bedrock positions, and they watch the evolution of the landscape.

The French Institute for Research and Development and research institutions in Bolivia, Ecuador and Peru are conducting an Andean Glacier Monitoring Program A Tool to Analyze Global Climate Change in South America .

It's kind of like an Andean Woodstock 60,000 Indians on pilgrimage to the end of a dirt road that leads to the sacred valley, called the Sinakara, which is dominated by three tongues of the great glacier.

Here's a mother and her two year old cub were traveling on a ship a hundred miles offshore in the middle of nowhere, and they're riding on this big piece of glacier ice, which is great for them they're safe at this point.

Artist Kate Hartman uses wearable electronics to explore how we communicate, with ourselves and with the world. In this quirky and thought provoking talk, she shows the Talk to Yourself Hat , the Inflatable Heart , the Glacier Embracing Suit , and other unexpected devices.

China s strategic interest in the line that separates India from a restive Tibet and the troublesome province of Xinjiang is straightforward. For India, Daulat Beg Oldie is an important outpost near the entrance to the Karakoram Pass and the Siachen Glacier region.