Tabular Ice, Weddell Sea, Antarctica 2009

But in Antarctica places can tend to run together thanks to one commonality: Here it is truly all about just one thing, The Ice. Sure, we all know there’s rock and snow below (even petrified forests and most likely dinosaur bones). But for the moment still, I still come to the far south each austral summer for the ice.

I admit to having a favorite: The big, tabular icebergs that litter the Weddell Sea like giant white dominoes. Set free from their role as guardian of the coastline gives them an independence apparent in their grandness. Frozen sea built up over centuries of falling snow, these particular tabulars are broken off from, remnants of the Larsen Ice Shelf. They are drifting (very slowly) north through the Antarctic Sound, where they will eventually float (very slowly)from the Southern Ocean into the Atlantic where they will, in a decade or so?, melt.

Today they are significant for more than just their size. These were once the grand guardians of the glaciers lining the eastern side of the Peninsula. That they have broken off and drifted away means those glaciers are at risk of disappearing ever faster.

They are long (on average a mile, sometimes up to ten and twelve miles) and high (one hundred and fifty, two hundred feet) and barely on the move. At the moment most are grounded and lodged on the ocean floor, shearing it clean of all living things. Their role in Antarctica’s future is powerful. Free to roam, and to disappear with the assistance of wind, rain, and warming temperatures, they’ve given up their role as protectorate and taken on the role of floating idols, reflecting sky and sea in new patterns every single minute.

During the course of AMNH’s “Polar Weekend” I learned a lot myself, particularly about the Polar Palooza project. Supported by the National Science Foundation and NASA’s Science Mission, with money from Apple, ASTC and science and natural history museum’s across the country it’s the hippest way I’ve seen yet to try and educate people, particularly kids, about the cold regions.

Dependent on ice researchers, geologists, oceanographers, climate scientists, biologists and Arctic residents the goal – via pod casts, blogs, vlogs and more – is to provide the simplest info about the poles (“Why do penguins live down South and polar bears only up North?”) for a wide audience. It’s even got it’s own rap song about climate change, which has to be a first.

As for the six-foot-tall penguin, I buddied up to him enough to query whether he was Adelie or Gentoo and all I got was a shoulder shrug, not a squawk out of him … very unusual for a penguin of any species.

Photo, Anne Sparkman

Antarctic icebergs rimming the southern tip of South Georgia have floated more than a thousand miles

I love seeing a place for the first time, convinced – like falling in love at first sight – that it is that very first glimpse that makes its biggest impression. My expectations were vast. While I’d heard about South Georgia for years – that its steep mountain peaks were covered by year-round snow, that more than one hundred and fifty glaciers filled its valleys, that tussock-covered fields spread up the hills from the sea, that it’s wildlife was out of this world – I had no mental images.

Now I have them. Big ones.

There are only a couple hundred volcanic islands in the South and Mid-Atlantic. Ascension, St. Helena, Tristan da Cunha, the Falklands and South Georgia are the best known.

South Georgia definitely has the most exotic reputation, in part thanks to Shackleton, in part due to its whaling history, but largely for its otherworldly menagerie.

Strong morning winds kept us trolling off the rocky coast for several hours searching for the appropriate approach. When we rounded the southeastern corner into Cooper Bay the gusts diminished as if with the snap of a finger. While the tall mountains and hanging glaciers were astonishing, the best part for me – after more than five weeks among the whiteness of Antarctica – was the green grass running down the hills to the sea. But it was when I raised binoculars to my eyes that I got the biggest jolt.

Something we haven't seen for awhile: Green grass

The beaches were, well, how do I put this. I’ve never seen such a mass of giant living, breathing sausage and blubber amassed in one place outside of a crowded East Coast beach on the 4th of July. Thousands of fur seals, hundreds of Weddell seals and hundreds more of the giant, two-ton female elephant seals, spread over the rock and sand beach … everywhere. And this is nothing. As I stare, mind-boggled, my friend Pete Pulesten tells me he first came here twenty-five years ago, and a couple months earlier in the breeding season, when thousands of horny, multi-ton male elephant seals line the beach like bratwurst. “That is when this place is truly wild,” says Pete.

South Georgia was first seen in 1675 by a Brit named Antoine de la Roche, who’d been blown far off course while rounding Cape Horn; the next time it was sighted was nearly one hundred years later, by the Spanish ship “Leon” who named it Ile de St. Pierre after the saint’s day (July 1) on which it was seen. It wasn’t until British explorer Captain James Cook, on his second voyage around the world in 1775, that South Georgia was mapped. Unfortunately for Cook, he thought he’d discovered the southern continent, Antarctica. When he rounded the southern tip of South Georgia, in the opposite direction than how we’d arrived this morning, and discovered he was looking due west, he named the point Cape Disappointment. He claimed the island for his homeland, sent home a report on the island’s “rich seas” and continued on his way.

Rich seas? That’s an understatement even today. In just a couple of hours, here’s what I saw: Penguins (Kings, chinstraps, Gentoo and Macaroni). Wandering and black-browed albatross. Southern and northern Giant petrels, as well as snow, white-chinned, the common diving and Wilson’s storm petrels. The South Georgia (Imperial) Shag. Hundreds of sheathbills and kelp gulls. Special terns and a pipit found nowhere else on earth. The south polar skua. Thousands and thousands of seals (fur and southern elephant). And, bizarrely, roaming in the background, sizable herds of reindeer (it’s a long story, but they were introduced by whalers more than one hundred years ago and they’ve not yet been exterminated).

Lounging female elephant seals

That’s all in just a couple hours. The sky was filled with flying critters, the shallows swimming with seals and the beaches chockablock with giant meat. (Lunching? Giant petrels literally disappear inside a dead fur seal, ripping its guts out with its sharp beak, such that the cadaver seemed to be flopping up and down on the beach on its own accord.)

My first impression? Walt Disney must have visited this place during his most productive years and created all of his magic kingdom’s based on South Georgia’s reality. Rugged mountains, covered by glacier and lush green tussock, rimmed by tens of thousands of flying, swimming, snorting, feeding, wrestling, playing critters. Everywhere.

A giant petrel, afloat

Photos, Fiona Stewart

2002

1986

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It is hard to imagine this place without ice and snow, but of course it has been. Roughly 125 million years ago what we know as South America and Africa began to separate; then, the Antarctic Peninsula where I stand was still connected to South America. From 38 to 29 million years ago the Antarctic continent moved south. During that Cretaceous period, circa 144 to 65 million years ago, the continent was covered by forest, including tree ferns, cycads, palms, conifers and deciduous trees, and was home to freshwater fish, dinosaurs, reptiles and the predecessors of the penguins we see here now, though they were somewhat different. In that they were the size of an average man and weighed 300 pounds.

The continent has frozen and thawed since, but has been completely covered by ice and snow since the last Ice Age, about 11,000 years ago. Today, even at the height of summer, only two percent of Antarctica is ice-free; the continent contains 75 percent of the fresh water on earth.

It is clear the Peninsula is evolving, changing … warming. Analysis suggests the rapidity of warming in the northern Peninsula is unmatched over the last 2,000 years. Temperatures along the Peninsula during summer have climbed on average five degrees in the past 50 years; its average winter temperatures have risen by ten degrees, twice as fast as anywhere on Earth in the past century.

If even a small part of the Ice Cap were to melt, world sea levels would rise from several feet to several yards, inundating most coasts. If the whole Ice cap were to melt, as it has in past ages, sea levels around the world would rise an estimated 260 feet, destroying a number of low-lying countries. Since sea levels have risen only 8.6 inches in the past century, the three-foot rise projected by the year 2080 is serious. Many millions will become refugees, depopulating the long U.s. coasts up to 50 miles inland, including all of southern Florida and the Mississippi Delta, also much of Bangladesh, the Philippines, Southeast Asia, the coasts of Africa and innumerable Pacific atolls.

Antarctica without snow and ice? Seems impossible, right? Here’s what the continent would look like without ice. It has been weighed down by heavy ice for so long that part of it is submerged. They would gradually climb back above sea level if free of ice, though that would take tens – hundreds? – of thousands of years.

What Antarctica would look like without ice

The continent that lays beneath, much of it now submerged due to the weight of the ice

Photos, Fiona Stewart

We spent the day among some of the biggest that have dropped off the continent’s glaciers in recent years – one hundred to two hundred feet tall, one to twenty miles long – centuries-old snow and ice compacted so hard and perfectly flat on top you could land cargo planes on them.

It makes for a stunning day, afloat among the giant bergs. But haunting at the same time.
These giant tabulars are remnants of the Larsen Ice Shelf; what remains of it lies just to our south. It has been disintegrating since 1996 and in March 2002 scientists watched a section of it – the 500-billion-ton Larsen-B – shatter into thousands of tiny icebergs before their eyes. Last March a 160-mile-square section the size of Manhattan broke off the Wilkins ice shelf, south of Marguerite Bay, and new, giant rifts can be seen in it from space, suggesting more break-off to come.

A Weddell Sea tabular

Statistics are worrying. Two of the 10 shelves along the peninsula have vanished completely within the past 30 years. Another five have lost between 60 percent and 92 percent of their original extent. Of the 10, Wilkins is the southernmost shelf in the area to start buckling under global warmings effect. What is happening so dramatically, so quickly to those shelves suggests it’s possible the rest of the Peninsula’s ice may deteriorate soon. And fast.

These big shelves are important for the protection they provide the glaciers. When that protection has disappeared, the glaciers will melt even faster. Spurred by warming coastal air and waters, many of Antarctica’s glaciers and ice shelves have accelerated their melting, suggesting that ocean levels might be irreversibly on the rise for centuries to come. The changes are detected each year by separate satellite and aircraft surveys of small glaciers along the east side of the Antarctic Peninsula, the rugged, sharply warming arm reaching toward South America and along the giant ice sheets feeding into the Amundsen Sea.

“Best guess” projections are that the melting on the Peninsula will raise the world’s sea levels by 20 inches to 3.5 feet in the next century, which spells trouble for places from Miami to the Maldives.

Magically rich in blue and white it is hard to imagine these giant bergs as Antarctica’s canaries-in-the-coal-mine, but that’s exactly what they are.

View a slideshow of Tabular Ice
Photos - Fiona Stewart

Photos, Fiona Stewart

Far south again, more than one hundred miles south of the Antarctic Circle, on Christmas morning we successfully landed at Bongrain Point, on the western edge of Porquoi Pas Island. It was a success too, because we’d been here eleven days ago and could only look at the beach through binoculars. A six-foot-thick lip of hard ice and snow lined the beach; we tried hacking steps with a hand ax, but it would have been a half-day’s work.

Instead today we rolled straight onto the beach, unimpeded by anything but underwater rocks exposed by the withdrawing tide and some floating growlers. That six feet of hard snow and ice? Gone. Completely gone. In eleven days. Think it’s not warming here, and warming fast? This isn’t some Denver suburb after a spring snow dump but far south Antarctica. Even in December – the equivalent of June in the northern hemisphere’s summer – the ice is disappearing faster and faster each season.

I love the place names around Marguerite Bay, which was named for the wife of the region’s earliest explorer, Jean-Baptiste Etienne August Charcot, who spent most of 1909-11 in the neighborhood explorig. Porquois Pas? comes from the name of Charcot’s ship; the tallest mountain on the island is Mt. Verne, for Jules Verne, and Bongrain Point for the ship’s first officer. Charcot Island was originally Charcot Land; the Frenchies mistakenly thought they’d hit continent at that point, but it later turned out to be a very big island.

In the afternoon we move up to the end of Bourgeois Fjord (named after Joseph E., director of the Geographic Service of the French Army) … where I had a great, long Christmas Day walk on the fast ice, surrounded by some of the most magnificent scenery in Antarctica.

WATCH VIDEO FROM BOURGEOIS FJORD, ON CHRISTMAS DAY!

Photos, Fiona Stewart

We’ve moved to the other side of the Peninsula, the eastern edge of the five-hundred-mile long finger jutting out of the continent, into the Weddell Sea. We tried to get in here last year, by sailboat and kayak, but were shut out. The winter of 2007 had been a particularly cold one, even by Antarctic standards, and the entry to the Antarctic Sound had been blocked long into summer by a pair of giant icebergs, each tens of miles long. That blockage, combined with a lack of wind, meant that where we had hoped to paddle – circumnavigating Vega and James Ross islands – was choked by frozen sea, passes between the islands still filled by one and two year old ice.

Weddell Sea tabular

This year is very, very different. The winter of 2008 was warmer and windier and even though we’re a day away from the official start of summer, much of the Weddell is already clear of the same kind of thick pack we saw last year.

That said it is never a picnic over here. The landscape is stark, the islands short-hilled and rust-colored. Other than a solitary Argentine base, there’s no one around for one hundred miles, and you sense that remoteness. If more than 100,000 sizable bergs calve off the Antarctic continent each year, about one-third of them come from the glaciers lining the Weddell Sea. Remember in 2002, when a chunk of ice the size of Rhode Island dramatically broke off from the Larsen B ice shelf? The Larsen B is just south of where I am today and some of that ice and its brothers and sisters are still grounded here. As I write I’m standing alongside a flat-topped berg a few stories tall and at least two miles long.

The ice here is different too. The sky is bright blue, the wind howling at thirty to forty miles an hour and I spend the better part of an hour looking through a spotting scope towards Seymour Island, following “the pack” being pushed by wind and current. It is miles wide, floating on the surface, exactly what you would not want to get caught in. Imagine being surrounded by a fast-moving pack tens of miles wide, unable to escape. You could be stuck for days, or worse.

The Weddell’s icebergs are mean and tough too, none of that soft, slushy stuff you might see at this time of year on the western side of the Peninsula. Hit one of these, and you’ll suffer. They are extremely hard, toughened by years of extreme cold and wind, often studded just below the surface by giant, sharp continental rock. Even the name of the water here is ominous – the Terror and Erebus Gulf – named for a pair of historical wooden sailing ships that first risked exploring the region.

At the north end of the channel, I take a long walk on Paulet Island, known for its 100,000 pairs of nesting Adelies. There are so many birds it is nearly impossible to clamber up the boulder-strewn beach. Beneath many of the birds peek the first chicks I’ve seen this year. As the day goes on, the sky grows evermore blue, the winds stronger.

Some of the 200,000 Adelie pengins on Paulet Island

Wind swept and rocky, islands in the Weddell Sea are vastly different than the opposite side of the Peninsula

ANTARCTICA EXPEDITIONS UPDATES

For a summary of who’s doing what down south this year by ski, kite and foot, check in with my friend Kraig Becker’s The Adventure Blog.  While I remain curious about the various attempts, admiring of the incredible physical stamina each requires, when you’re on the edge of the continent as I am, all of that seems very … foreign … very far away.

Photos, Fiona Stewart