Groundwater is an extremely precious resource. People all over the world depend it to satisfy a variety of needs. In the United States in 2000, total groundwater withdrawals, both fresh and saline, totaled approximately 408 billion gallons per day. The…
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Aquifers are underground water reservoirs from which people pump out water, for agricultural, industrial, or municipal uses. Most land areas on Earth have some form of aquifer underlying them. Sometimes they are close to the surface, and sometimes they are…
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Aquifers deep under our feet hold life. This is a stark reality for many millions of Earth’s inhabitants, because an aquifer is “a water-bearing stratum of permeable rock, sand, or gravel.” [Merriam-Webster, 2009] For untold millions, the water “under the…
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When volcanoes erupt, they may send out flows of scorching lava. They may explosively eject debris high into the air instead, or may eject a combination of flowing lava and exploding debris. Tephra is a volcanologist’s term for the solid…
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The Atlantic Ocean and its marginal seas cover approximately 20% of Earth’s surface, extending from the eastern shores of North and South America to the western coasts of Europe, the Strait of Gibraltar and Africa. To the north is the…
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The major form of international imports, exports and travel in the 19th century was by sea. A journey from Baltimore in the United States to Brazil was an arduous sea voyage of more than 120 days using the fastest clipper…
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The Great Lakes of North America are world famous, and most people are aware that it is the collective name given to lakes Superior, Michigan, Huron, Erie and Ontario. Fewer people are perhaps aware though as to why the Great…
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Have no fear astrology is still here, and you’re still the sign you were when you were born. Astrologers for years have known about the wobble in the earth, and yes the man in Minnesota is correct. The interesting fact is…
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The Antarctic actually has a few “poles” on the continent. There is the south pole, which is the point of the Earth that is the exact opposite of the north pole, or the very bottom of the Earth. In 1911, explorer…
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Volcanoes are one of the most interesting subjects to read and learn about. They also give people an idea of what is going on inside the earth. Some of the facts about volcanoes tend to make a person want to…
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