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Creation  Volume 18Issue 3 Cover

Creation 18(3):36
June 1996

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The Ark of Noah comic

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Editor’s note: As Creation magazine has been continuously published since 1978, we are publishing some of the articles from the archives for historical interest, such as this. For teaching and sharing purposes, readers are advised to supplement these historic articles with more up-to-date ones suggested in the Related Articles and Further Reading below.

Did Noah need oxygen above the mountains?

Ceinturion, wikimedia commons


The replica ark that Dutchman Johan Huibers built.

by Don Batten

Question: If mountain climbers need oxygen tanks to climb Mount Everest, how were Noah, his family, and the animals able to breathe on the Ark when they were above the mountains (‘ ... and the mountains were covered.’, Genesis 7:20)?

Answer: This question presupposes that Mount Everest was the height it is now (8,848 m = 29,028 ft), and that the air pressure would not have changed at that height above normal sea level with the addition of the flood water.

Mount Everest was not the height it is now during the Flood. Earth’s highest mountains have fossils of sea creatures at their tops, showing they were once under the sea. The possibilities are that the sea rose to cover the mountains, or the mountains were once under the sea and have since risen out of the sea, or a combination of the two.

Many creationist scientists think that mountains such as the Himalayas were probably built by catastrophic movement of the earth’s continental plates during and after the Flood (see Q&A: Plate Tectonics). Measurements indicate that the Himalayas are still rising). The rate of rise now measured is just the remnant of the processes that occurred much faster in the past.

Some mountains could have existed before the Flood, but none like the current Himalayas, Alps, or Andes in height.

Mountain building occurred as a part of the geologic processes that deepened the oceans to take the waters off the land towards the end of the Flood. Some mountains could have existed before the Flood, but none like the current Himalayas, Alps, or Andes in height. In any case, there is only enough water on all the earth to cover mountains about 3 km (2 miles) high, if all the ocean basins were raised. So, if the waters were not 9 km deep, but much less, the question is no longer an issue.

Even if the flood waters were 9 km deep, would Noah and company have had trouble breathing?

Absolutely not. Air pressure is caused by the weight of air above the point where the pressure is being experienced. If the water was 9 kilometres deep, then the air that was in that 9 kilometres deep volume of what was atmosphere would have been pushed out and would then have sat above the water at 9 kilometers above the earth’s former surface.

However, if we assume the worst case scenario of the radius of the earth increasing by 9 km due to the water, the surface area of the earth plus water would have been greater than the earth so that the weight of air would have been spread over a bigger area so that the pressure would have been less.

How much would the air pressure have been reduced? Less than 0.3%. This is equivalent to standing on top of a 30-m (100-ft) high building at sea level! There would also have been a negligible effect on the pressure due to changes in the force of gravity (which affects the weight of the air).

It is certain, therefore, that those on the Ark would have had no trouble breathing—without oxygen tanks.

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A reader’s comment
Richard C., Namibia, 24 August 2016

I fear you may have given the poser of this question too much credence as a scientific thinker, thus needing to overthink the answer. The answer is, in fact, much simpler.

Mountain climbers need oxygen on high mountains, not because they are so high from the sea floor or because they are so far from the centre of the earth, or anything like that. They need oxygen because they are so high above SEA LEVEL. Noah remained at sea level throughout the duration of the flood, until he exited the ark.

Don Batten responds

As the calculations show, there would be a tiny decrease in the partial pressure of oxygen due to the slightly greater circumference of the earth + water (sea level being higher).

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