One of the oft-reported global warming lies is that the North Pole may be "ice-free next summer" due to "catastrophic human-casued global wamring."
Back when I was a baby, in 1958, the ice at the Pole was very thin, even in the depth of winter as the following shows:
Skate (SSN-578), surfaced at the North Pole, 17 March 1959. Image from NAVSOURCE
Some additional captures from the newsreel below show that the ice was pretty thin then, thin enough to assign deckhands to chip it off after surfacing.The newsreel is interesting, here is the transcript.
1958 Newsreel: USS Skate, Nuclear Sub, Is First to Surface at North Pole
ED HERLIHY, reporting:
USS Skate heads north on another epic cruise into the strange underseas realm first opened up by our nuclear submarines. Last year, the Skate and her sister-sub Nautilus both cruised under the Arctic ice to the Pole. Then, conditions were most favorable. The Skate’s job is to see if it can be done when the Arctic winter is at its worst, with high winds pushing the floes into motion and the ice as thick as twenty-five feet.
Ten times she is able to surface. Once, at the North Pole, where crewmen performed a mission of sentiment, scattering the ashes of polar explorer Sir Hubert Wilkins. In 1931, he was the first to attempt a submarine cruise to the Pole. Now, the Skate’s twelve-day three thousand mile voyage under the ice, shown in Defense Department films, demonstrates that missile-carrying nuclear subs could lurk under the Polar Ice Cap, safe from attack, to emerge at will, and fire off H-bomb missiles to any target on Earth.