Earth Science
What is the reason that rivers are straightened, and what is the effect on the environment?
By: Adelani Aderemi
It is very uncommon to see naturally straight rivers because water flows through a path of least resistance. Thus rivers meander around obstacles until they empty into another river, lake or ocean. For many reasons, human beings have devised means of straightening water courses. Straightening...
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How snow pack replenishes aquifers
By: Rex Trulove
Aquifers can be confusing. Often times, people may find that their well water is going dry or that there isn't much water pressure, though the pump isn't any different than it always has been. If they ask what the problem is, they might be told...
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Nature controlling population
By: Altaf Sahibzada
Thomas Malthus or Robert Thomas Malthus (1766-1834), was an English demographer and political economist. He is popular for his views on population growth in his "an essay on the principle of population". His theory of population growth has been very controversial since its publication.Essentially...
An overview of green energy possibilities from the ocean
By: Steven Wengland
Rising energy costs, rumors of depleting fossil fuels, global warming, environmental toxins; it sounds like the Christmas wish list of Dr. Seuss' the Grinch. In an article in the Wall Street Journal (WSJ), entitled Electric Industry Grds for Delays In Coal, Gas Flows, it is...
Why planting trees is great for the atmosphere
By: Irrira Rikki
Every fruit eating creature of nature, plants seeds of the trees they have eaten. Even the forest and jungle trees which drop their seeds, help in the re-growth of trees.It took humans a long time to learn how important the planting of trees was...
How to survive an arctic winter
By: Morgan Carlson
Although only professionals with the right equipment and purpose should be exposed to an arctic winter, sometimes the jet stream will drop and deliver temperatures from the top of the world to the countries of the Northern Hemisphere. This article will describe what is needed...
Why mature forests aren't as bio-diverse as young forests
By: Rex Trulove
A myth perpetuated in the 70s, and later, had it that old growth forests are more biologically diverse than new growth forests. The truth is actually the opposite. The more mature a forest becomes, the less diversity of plants and animals that are supported. It...
By: Hai Shunxi
If you were to plot the locations of the world’s active volcanoes on a world map, you'd soon realize that these smoking mountains aren’t randomly scattered about the globe. You can see such a map here, in fact.The patterns paint a striking...
The geology of the Ozarks
By: Ramon Davis
The Ozarks or Ozark Mountains (as they are commonly referred to) are among the oldest mountainous ranges in the world, dating back to prehistoric times. The ranges are located in northern and north central Arkansas as well as southeastern Missouri and southwestern Oklahoma. This tri-state...
Why planting trees is great for the atmosphere
By: Karen Jones - 412732
It is almost impossible to imagine our fertile planet basking in the Sun's heat, stripped bare of trees. Life would struggle to exist in such unfavorable atmospheric conditions; our familiar ecosystems becoming irreparably unbalanced. There is a finite balance between global diversity and nurturing the...
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