For a brief moment today, we were the fulcrum between the rising moon and setting sun - our narrow north-bound ski trail slicing the two halves of the sky.

I'm not sure why, but for some reason layers have been on my mind lately. From a practical stand point, it was windier today, so we all added another layer of Terramar. Ocean, ice, air, space, we occupy such a small layer of life on this planet. Layers of an onion, layers of an issue, layers of affection. The ice was layered today too, formed, broken, reformed, cracked, drifted and refrozen one last time.

We are in big ice country. In many places five foot thick slabs are pressured high into the air. In others, deep cracks gaped menacingly under our Madshus skis and Atlas snow shoes. Darcy found a narrow lead running between two big slabs. 'It looked like a hallway,' he said. 'Unfortunately, it turned into a jumbled mess.'

The wind is also mysteriously increasing near our day's end. 'The main thing about today was that it was really cold during our last shift, Darcy added. 'I was glad I wasn't in front navigating.' I was and he's right, it was cold.

We are into the rhythm of trail life now. Ski, eat, ski, eat, ski, eat sleep. We talk about warmth and couches every so often but mostly we keep thoughts of friends and family close to ourselves... Another layer of warmth I guess.

Image: AJ stepping up onto a slab of multi year ice.

The Save the Poles expedition is sponsored by Bing with major support from the University of Plymouth, Terramar, Seventh Generation, Goal0, Atlas, Sierra Designs and Optic Nerve.

Remember, it's cool to be cold. Save the Poles. Save the planet.

For more information, please visit www.ericlarsenexplore.com

For information about guided Antarctic expeditions, please visit http://www.antarctic-logistics.com/

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