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Sea Level facts

While investigating facts about Sea Level Rise Map and Sea Level Rise, I found out little known, but curios details like:

In 2012 a scientific study predicted a 39 inch rise in sea level along the North Carolina coast over the next century. In response, North Carolina lawmakers passed a law banning the use of scientific predictions of sea level rise when considering new developments along the coast.

how sea level is measured?

In 1962 a strange spring was found in northern Texas. Despite being 500 miles from any coast, it was home to marine species such as crabs, barnacles and seaweed, all isolated thousands of years prior when the sea levels rose and fell. Sadly, all this was wiped out after a dike was built.

What is the pressure at sea level?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what is the speed of sound at sea level. Here are 50 of the best facts about Sea Level Cronulla and Sea Level Swimwear I managed to collect.

what is the atmospheric pressure at sea level?

  1. There is a concrete dome in the Marshall Islands containing tonnes of nuclear waste the US left there during Cold War testing and there is a large risk of it leaking due to rising sea levels. Nothing is being done about this.

  2. The sea level is rising everywhere in the world, except along the coasts of Finland and Sweden. But even though the sea is still rising here, it’s just that the land is rising faster

  3. Mount Everest is only the world's tallest mountain as measured from sea level. But since the earth bulges at the equator, the mountain Chimborazo in Ecuador is the tallest mountain if you measure from the earth's core.

  4. The farthest the human eye can see unaided: at sea level you can see for just under 3 miles, on Mt. Everest you could potentially see 211 miles, but under a dark sky you can see the Andromeda Galaxy 2.5 million light years away.

  5. In 1942 a British forest guard in India made an alarming discovery. Some 16,000 feet above sea level, at the bottom of a small valley, was a frozen lake absolutely full of skeletons.

  6. Sea otters are one of the only natural predators of sea urchins which makes them a keystone species in helping to maintain the balance of kelp ecosystems. Because they help maintain the kelp ecosystem, they are indirectly helping to reduce levels of atmospheric carbon dioxide.

  7. Due to such normally low light levels some species of deep sea animals are blinded and eventually die after being exposed to the light from a research submersible.

  8. The South Pole is 9,301 feet above sea level - but 9,000 feet of that is ice.

  9. Above 19,200m (63,100ft) above sea level, the body hits the Armstrong limit. At this point you'll suffocate to death no matter how much air you inhale because the liquid wetting your lungs to let you breathe will boil away at body temperature, and is a major reason for pressurised suits.

  10. Bumblebees hold the insect record for high altitude flying. They have been discovered on Mt. Everest at more than 5,600-meters above sea level, and flew successfully in a flight chamber which recreated the thin air of 9,000-meters.

sea level facts
What is the air pressure at sea level?

Sea Level data charts

For your convenience take a look at Sea Level figures with stats and charts presented as graphic.

sea level fact data chart about The World's Airports & Airstrips: Global Locations & Elevati
The World's Airports & Airstrips: Global Locations & Elevation Above Sea Level

sea level fact data chart about Norwegian railway stations - Meters above sea level
Norwegian railway stations - Meters above sea level

Why sea level rise is a problem?

You can easily fact check why sea level changes by examining the linked well-known sources.

Despite rising sea levels, Finland's geographic elevation is actually rising relative to the ocean

There was a plan in the 1920s/30s to dam the Mediterranean Sea, create a series of hydroelectric dams, lower sea levels and make North Africa more fertile. It was imagined by a German who wanted to avoid another world war for resources, land and energy by providing plentiful resources for Europe - source

Sweden is spared from the problem of rising sea levels because the land is actually rising faster than the sea as a result of the vast ice sheets of the last Ice Age disappearing in the area later than anywhere else, causing what's called post-glacial rebound - source

If you are 6' tall and looking out over the ocean at sea level the horizon is roughly 3 miles away

4 divers literally exploded when a member of the boat crew accidentally opened the outer hatch of their decompression chamber. The men went from 305ft. down to sea level instantaneously. - source

When sea levels rise map?

An underwater cave in southern France has >20,000 year old cave art on its walls, made when sea levels were lower. The art depicts Auks, Bison, wild horses, and more.

How sea level rise?

Sea level rise is attributed to ice melting on land, not ice melting on the sea. Like a glass of water with ice; the volume doesn't change when it melts, so we need to beware of Greenland and Antarctica's ice melting.

In 2006, Katie Melua gave a concert at 303 meters below sea level in one of the legs of the "Troll A" oil rig, earning a Guinness record for "deepest underwater concert"

Pyura Chilensis, a sea creature from Chile that resembles a rock. It is born male and becomes hermaphroditic at puberty, and it’s clear blood contains high levels of the rare element vanadium. It tastes like iodine, sea urchin and soap.

There was once a plan to flood below sea level areas of the Sahara, creating large inland seas that would bring humid air, rain and agriculture deep into the desert.

German architect Herman Sörgel had a plan to build an enormous dam across the Strait of Gibraltar to lower the sea level of the Mediterranean Sea by up to 200 m to colonize new territories and produce huge amounts of hydroelectricity.

Sea level infographics

Beautiful visual representation of Sea Level numbers and stats to get perspecive of the whole story.

sea level fact infographic about Rise and fall of sea levels during a day (Data collected by

Rise and fall of sea levels during a day (Data collected by sensor, for each minute)

sea level fact infographic about Number of people threatened by a 5 meter sea level rise in e

Number of people threatened by a 5 meter sea level rise in each country

When sea levels rise?

Engineers building a bridge between Germany and Switzerland found that when the two halves met their elevations differed by 54 cm. Germany bases sea level on the North Sea, and Switzerland by the Mediterranean; someone messed up the correction, doubling it instead of cancelling it out.

Due to volcanic uplift, the beach on Iwo Jima where US troops came ashore in 1945 is now 56ft (17m) above sea level, and the beach where Captain Cook sent his surveying crew ashore in 1779 is now 131ft (40m) above sea level.

In 2009, the government of the Maldives held an underwater cabinet meeting in a symbolic cry for help over rising sea levels that threaten the country's existence

If everyone in the world lived an American lifestyle, it would require four Earths to sustain that level of consumption. I'm pretty sure that this remarkable guide about sustainable living is almost unknown, lost in the sea of Internet information, however, I've found it inspiring.

The highest natural point in Rhode Island, Jerimoth Hill, was once considered one of the more difficult state highpoints to scale despite being a gentle hill only 812 feet above sea level, as the trail up the hill passed through the private property of an old man who would threaten trespassers.

How sea level rise due to global warming?

Due to gravitational time dilation the core of the earth is approx. 2.5 years younger than surface. Higher gravitational potential causes time to move faster. For example, over the course of earth's history, a clock at the top of Mt. Everest would be approx. 39 hours fast than at sea level.

Mt. Everest is actually not the tallest mountain on Earth, instead it has the tallest elevation or highest point above sea level. Mauna Kea in Hawaii is the actual tallest mountain, however most of it is underwater so it is often discredited.

The Aral Sea has been nearly fully drained by human irrigation and that this has happened before. Over 600 years ago the Mongols drained the lake too an even lower level than today.

Mexico City is 7200 feet above sea level which had a major affect on athletes in the 1968 Olympic games

Mount Everest isn't the highest mountain on Earth. Because the Earth bulges at the equator the Ecuadorian mountain Chimborazo is higher, but Mount Everest is taller compared to sea level.

13,000 years ago, North America had a lake bigger than the Black Sea. When it finally drained it cause global sea levels to rise as much as 3 meters.

There is a New York City neighborhood 30 feet below sea level that is effectively a ghost down because it cannot be hooked up to the sewer system and floods when it rains. It used to be a body-dumping area for the mafia.

Tibetans living at >4200m altitude have more than double the blood flow compared to people living at sea level, as a result of the low pressure at these altitudes.

In 1958, an earthquake created a tsunami that was the largest wave ever known. The force of the wave removed all trees and vegetation from elevations as high as 1720 feet (524 meters) above sea level.

A rogue North Atlantic wave broke 67m (220 ft) above sea level, shattering 23 windows and flooding the Eagle Island lighthouse in Ireland. Workers were unable to open the door due to water pressure, forcing them to drill it to drain the tower

There's a public basketball court in Alma, Colo., which sits at an elevation of 10,578 feet above sea level. It's literally the highest court in the land.

The Archipelago Sea (Finland) contains the most amount of islands compared to other archipelagos with estimates of up to 50,000 masses of land from inhabited islands to above sea-level rocks.

White Sands National Monument in New Mexico long ago was an ancient sea that covered most of the southwestern United States. It was during this time that layers of gypsum which caused the rise and fall of the sea level millions of years ago and influenced the making of the white sand.

Computers at higher altitude are more prone to errors than computers at sea level, due to higher levels of cosmic radiation

A predominant cause of jet lag is the lack of available oxygen in airplane cabins. Airlines only pressurize cabins to levels equivalent to 8000 ft. above sea level to extend the lifespan of the plane.

This is our collection of basic interesting facts about Sea Level. The fact lists are intended for research in school, for college students or just to feed your brain with new realities. Possible use cases are in quizzes, differences, riddles, homework facts legend, cover facts, and many more. Whatever your case, learn the truth of the matter why is Sea Level so important!

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