Fueling the Cold: Eric Philips on Polar Survival
Australian polar explorer and private astronaut Eric Philips discusses the extreme calorie requirements of the Arctic and Antarctic, and why a high-functioning team is a “survival essential.”
[00:00:15] Eric Philips has spent decades navigating the world’s most frozen environments. Whether crossing the North Pole or training for space missions, he emphasises that the human body acts as a biological engine that requires an incredible amount of fuel to generate heat in sub-zero temperatures.
The Butter Diet: High-Density Energy
[00:01:45] On a polar expedition, an explorer can burn between 6,000 and 10,000 calories per day. Carrying that much food on a sled (pulk) requires prioritising energy density. Fat is the most efficient fuel source because it contains nine calories per gram, compared to only four calories in proteins or carbohydrates.
[00:02:30] Eric describes a staple of the polar diet: butter. To meet their energy needs without adding too much weight to their sleds, explorers often eat chunks of butter straight or melt it into every meal. “You stop seeing it as a condiment and start seeing it as pure survival fuel,” Eric notes.
The Thermodynamics of the Body
[00:04:10] In extreme cold, the body uses a massive portion of its energy just to maintain a core temperature of 37°C. Eric explains that if you run out of fuel, your body can no longer shiver or produce heat, leading rapidly to hypothermia. This is why polar explorers eat “fat bombs”—mixtures of nuts, chocolate, and oils—at regular intervals throughout the day.
Teamwork as a Survival Strategy
[00:06:20] While food fuels the body, teamwork fuels the mission. Eric discusses the “expedition mindset,” where the needs of the group must always come before the individual. In a place where a single mistake can be fatal, communication and trust are just as important as a warm sleeping bag.
[00:08:45] He shares that the best teams aren’t necessarily the strongest athletes, but the people who can monitor each other’s health and morale. “You are looking for signs of frostbite or exhaustion in your teammate’s face before they even notice it themselves,” says Eric. This radical care for one another is what allows a team to succeed in the most hostile environments on Earth (or in space).
From the Poles to the Stars
[00:10:30] As a private astronaut, Eric sees clear parallels between polar exploration and space travel. Both require life-support systems, careful resource management, and a team that functions as a single unit. The lessons learned on the ice—about high-density nutrition and human psychology—are directly applicable to the future of lunar and Martian colonies.
Happy teaching,
Ted Tagami
