90% of the world's ice covers Antarctica. This ice also represents seventy percent of all the fresh water in the world.
If all the ice in Antartica melted, the level of the oceans would rise more than 60 meters. About one fourth of the land area of the world would then be flooded.
In 1958, the United States Coast Guard off western Greenland measured the tallest known iceberg at 168 meters.
The average ice berg weighs 20 million tons.
In the United States, about 33% of land is covered by forests.
Percentage of Africa that is wilderness: 28%. Percentage of North America that is wilderness: 38%.
The oceans cover 71 percent of the Earth's surface and contain 97 percent of the Earth's water. Less than 1 percent is fresh water, and 2-3 percent is contained in glaciers and ice caps.
The average depth of the oceans is 4 km. The deepest point on the Earth's surface lies in the Mariana Trench (called the "Challenger Deep") in the Pacific Ocean, 11 km down. By way of comparison, Mount Everest is only 8,8 km high.
Mt. Everest is considered the tallest mountain on Earth. But if you measure Mauna Kea from the seafloor to its top, it is more than 1,2 km taller than Everest.
It only snows about 5 cm per year in most parts of Antarctica.
NASA scientists have concluded that the state of California is moving north and will collide with the state of Alaska in roughly 150 million years.
A full moon always rises at sunset.
Heavy air -- An average size room contains about 40 kg of air.
The speed of an average sized raindrop under normal conditions is 11 km per hour (7 mph).
The typical thunderstorm drops about 500 000 tons of water.
Some large clouds store enough water for 500 000 showers.
Thunderstorms cause an average of 200 deaths and 700 injuries in the United States each year.
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
Australia is the only continent without an active volcano.
The world's worst earthquake occurred in 1556 in China killing approximately 830.000 people.
Each unit on the Richter Scale is equivalent to a power factor of about 32. So a 6 is 32 times more powerful than a 5! Though it goes to 10, 9 is estimated to be the point of total tetonic destruction. 2 is the smallest that can be felt unaided.
Sound at the right vibration can bore holes through a solid object.
Sound travels 15 times faster through steel than through the air.
If a tennis ball was bounced against a wall once a second and each time it hit its atomic structure changed randomly, once every five suns' lifetimes it would pass through the wall.
Each ton of recycled paper can save 17 trees, 1 438 liters of oil, three cubic yards of landfill space, 4 000 kilowatts of energy and 26 500 liters of water.
Just by recycling one aluminum can, enough energy would be saved to have a TV run for three hours.
In 1992, the Antarctic Ozone hole was larger than the continent of North America.
One liter of used motor oil can ruin approximately one million liters of fresh water.
An aircraft carrier moves about 4 cm per liters of fuel. Also the cruise liner Queen Elizabeth II moves only 4 cm for each liter of diesel that it burns.
A jumbo jet uses more than 15 000 litres of fuel to take off.
The Hawaiian alphabet has 12 letters.
There are more than 40 000 characters in Chinese script.
The English language makes over 600 000 words out of 26 letters.
By the time a child is 5 or 6 they have learned about 5 000 to 6 000 words.
The average web page contains 500 words.
After English, the most widely used languages on the Internet are German, Japanese, French, Spanish, Swedish, Italian, Portuguese, Dutch, Norwegian, Finnish, Czech, Danish, Russian, and Malay.
The most common letters in English are R S T L N E.
315 entries in Webster's 1996 Dictionary were misspelled.
There are about 5 000 different languages spoken on Earth.
The average adult can read 150-200 words a minute.
The Inca tribe in Peru created the decimal system hundreds of years before it was introduced in Europe.
New York's Central Park is nearly twice the size of the entire country of Monaco.
Vatican City is the smallest country in the world, with a population of 1 000 and only 0,4 square km in size.
The Canary Islands in the Pacific are named after what animal? Dogs ("Canines").
Punta Arenas in Chile is the world's southernmost city.
The tallest structure in the world is the KTHI-TV Mast, Fargo, Dakota, USA, at 629 m.
The Great Pyramid at Giza in Egypt, constructed around 2500 B.C., was the tallest structure in the world until the Eiffel Tower was erected in 1889.
The biggest Pyramid in the world is not in Egypt. It's actually about 100 km southeast of Mexico City, Mexico. It covers about 162 00 square meters and the largest Egyptian Pyramid, The Great Pyramid at Giza (Egypt), covers only about 52 600 square meters.
The tallest tree recorded is located in Humboldt Redwoods State Park, California. It is a coast redwood and has been measured at 117 metres high.
Weight of the world's largest living tree, a Giant Sequoia in California named General Sherman: 6 167 tons
The weight of the tree counted in elephants: 740. In blue whales: 41
The bark of an older redwood tree is fireproof. The redwoods extremely high water content also reduces the tree's susceptibility to fire. Fires in redwood forests take place inside the trees.
Brush fires are common around the Los Angeles area, and often hundreds of acres are burnt. The amount of energy released by burning just 160 000 square meters of brush is equal to that released by the atom bomb dropped over Hiroshima.
According to National Geographic, scientists have settled the old dispute over which came first -- the chicken or the egg. They say that reptiles were laying eggs thousands of years before chickens appeared, and the first chicken came from an egg laid by a bird that was not quite a chicken. That seems to answer the question. The egg came first.
There are more than 1 000 chemicals in a cup of coffee. Of these, only 26 have been tested, and half caused cancer in rats.