... being uncovered, and each piece of new information leads to a better understanding of the inner workings of the universe. Mars, the fourth planet from the Sun, has been especially interesting to study because of the similar characteristics shared with Earth. Mars has been visited and studied ... the weather system. The study of space weather and weather on other planets provides scientists with information that provides a greater knowledge of how our planet works. Jonathan Lunine, a professor at University of Arizona, believes that studying the climatic states of other planets provides an...

• Word Count: 4020
• Approx Pages: 16
• Has Bibliography
• Grade Level: High School

... from Earth's surface. Atmospheric layers are characterized by differences in chemical composition that produce variations in temperature. Troposphere The troposphere (14k jpeg) is the atmospheric layer closest to the planet and contains the largest percentage of the mass of the total atmosphere. It is characterized by the density of its air and an average vertical temperature change of 6 degrees Celsius ... wavelengths from 290 nm - 320 nm. These wavelengths are harmful to life because they can be absorbed by the nucleic acid in cells. Increased penetration of ultraviolet radiation to the...

• Word Count: 2950
• Approx Pages: 12

... of earth. Our oceans and seas are being polluted and overfished. Our atmosphere is injected with increasing amounts of carbon dioxide, which hurts the entire planet. All of these problems can be traced to our vast, rapidly expanding population, which has stressed our world far too greatly. Our Population In ... worldwide, especially by burning, carbon dioxide is released into the air, adding to the stock of greenhouse gases that are now warming our planet and changing its climate. The adverse of this negative effect of forest loss on climate is the positive role of forests in regulating ...

• Word Count: 3065
• Approx Pages: 12
• Has Bibliography
• Grade Level: High School

... weather patterns, sea levels rising, and extinction of endangered animals are some of the consequences of a major problem. This major problem also helps keep this planet hospitable for us. This major problem is global warming. Maybe it's time for the society to take a look at what causes global warming. Global warming ... time around the world. People are aware of global warming and understand that it affects their lives in a dramatic way. As part of this planet, we should find some type of solution for what causes global warming. Irregular weather patterns can occur because of global w...

• Word Count: 3357
• Approx Pages: 13
• Grade Level: High School

... in nature, and etc. Fact or Fiction An Inconvenient Truth presents ex vice- president Al Gore and his passion to help save our planet. This documentary attempts to impact American citizens through factual evidence about the reality of global warming and that it is caused by the actions of ... United States and also ran for President and lost in the 2000 presidential elections. The documentary focuses on a global issue which threatens our planet: global warming along with the causes and the frightening possible effects of this unwanted process. While bringing some undeniable proofs and a...

• Word Count: 6155
• Approx Pages: 25
• Grade Level: Undergraduate

... NO2, N20) trace​ Table 2: Variable Components. (Amounts vary over time and location.) Although both nitrogen and oxygen are essential to human life on the planet, they have little effect on weather and other atmospheric processes. The variable components, which make up far less than 1 percent of the atmosphere, have ... exist as we know it. Though the greenhouse effect is sometimes portrayed as a bad thing, trace amounts of gases like CO2 warm our planet's atmosphere enough to sustain life. Global warming, on the other hand, is a separate process that can be caused by increased amount...

• Word Count: 3528
• Approx Pages: 14
• Grade Level: High School

... now we know they have shaped other planets as well. Volcanic eruptions constitute one of the minor natural disasters on the planet Earth because they cause fewer fatalities than earthquakes and famines (Encyclopedia Britannica). Even though, scientists have estimated that at least 200,000 persons have lost their lives as a result of ... best guess is 1511 volcanoes have erupted in the last 10,000 years and should be considered active (Simkin & Siebert). These eruptions had contributed in many good ways to our planet Earth. The earth's water and atmosphere are evolved from the gases pro...

• Word Count: 2820
• Approx Pages: 11
• Has Bibliography

... doubt this atmospheric buildup of carbon dioxide and other greenhouse gases It's well accepted by scientists that greenhouse gases trap heat in the Earth's atmosphere and tend to warm the planet. By increasing the levels of greenhouse gases in the atmosphere, human activities are strengthening Earth's natural greenhouse effect. The key greenhouse gases emitted by human activities remain in the atmosphere ... the U.S., the types of offices we use, how our food is grown, and other factors. The effects of global warming and a changing climate will not be felt equally across our planet. Reg...

• Word Count: 3240
• Approx Pages: 13
• Grade Level: Undergraduate

... Earth must radiate heat to space. Greenhouse gases like carbon dioxide (CO2) and methane (CH4) absorb a part of this heat energy and radiate it back to the surface of the planet, trapping it in the lower atmosphere (troposphere). This process raises the temperature of the atmosphere near the Earth, which in turn raises sea level, increases evaporation and precipitation to affect ... global cloud cover; and thereby alters the distribution of climate across the surface of the planet. An increase in average global temperature of 0.7 C has already been measured, and present rates of emissio...

• Word Count: 2775
• Approx Pages: 11
• Grade Level: Undergraduate

... life on Earth. Lovelock saw in this project, that maybe the atmosphere of Mars caused there to be no life on it. There is a difference between the atmosphere of a living planet, and one of a dead one. James Lovelock wrote a book about his hypothesis of Gaia in 1979 called, Gaia: A New Look at Life on Earth. The book suggested that " the physical ... greenhouse gas emissions about seven to nine percent lower by the year 2008-2012. The United States agreed to seven percent. This is a great way in starting to save our planet. We can prevent water pollution by not pouring anything into our ...

• Word Count: 2564
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School

... , and so much space is devoted to the environmental matters? The article even closes by concluding that fresh fruit is the preferable choice. "It's better for you-and for the planet."" This article demonstrates that our environmental situation, especially at present with the new excitement of the ratification of the Kyoto protocol, is weighing heavily on the minds of North Americans ... . Before international organizations, countries were responsible for themselves and the best interests of their citizens. International committees and pacts like the Kyoto accord are ultimately designed to...

• Word Count: 2601
• Approx Pages: 10
• Has Bibliography
• Grade Level: Undergraduate

... , much of the Earth's water would accumulate around the two poles, leaving vast deserts in its place. If the atmosphere surrounding the Earth were much thinner, meteorites could strike our planet with greater force and frequency, causing worldwide devastation. The oceans provide a huge reservoir of moisture that constantly is evaporating and condensing, thus falling upon the land as refreshing rain. It ... Universe, the Earth, and life on the Earth are all here as a result of fortuitous accidents. Physicist John Gribbin, writing on the numerous specific requirements necessary for life on...

• Word Count: 2632
• Approx Pages: 11
• Grade Level: High School

... carbon dioxide and puff out oxygen so that we can breathe. There are many things we can do to help our planet. Planting trees is one of them. Each time we cut down a tree, we should plant a new one. Thus, the planet can be replenished over and over again. The oldest tree For eons the bristlecones (Pinus longaeva & aristata) have flourished atop ... ...

• Word Count: 2774
• Approx Pages: 11
• Grade Level: High School