| There seems to be a lot of controversy about | | | | industries, and are used for products such as, |
| global warming these days. Some say it is a fact, | | | | styrofoam, spray-can propellants, refrigerants, |
| others say it isn't. But regardless of whether or | | | | electronic circuit boards, and many more. |
| not it is a fact, let's step aside from the | | | | - Water Vapor - This is completely natural, and is |
| arguments on the subject, and take a | | | | caused by the sun evaporating water from our |
| common-sense approach. let's take look at the | | | | oceans. |
| issues involved. | | | | As you can see, carbon dioxide, methane, and |
| What is Global Warming? | | | | nitrous oxide are produced mainly by human |
| We can take a look at the definition of global | | | | resources, whereas chlorofluorocarbons are |
| warming - without taking sides or getting into | | | | exclusively produced by industrial installations. |
| vested interests, political motivations, reasons, or | | | | Out of all the above, interestingly enough, the |
| causes. | | | | greenhouse gases which have the largest effect |
| The definition of global warming in its purity is "an | | | | on global warming are water vapors. This fact will |
| overall increase in world temperatures." Whether | | | | no doubt please all critics of the "global warming |
| this is caused by greenhouse emissions or a | | | | theory". |
| natural phenomenon, has no bearing on whether | | | | You have to keep in mind, however, the cyclic |
| there is an average temperature increase. | | | | effect of global warming. A slight increase in |
| Is There an Overall Increase in World | | | | temperature will increase the amount of water |
| Temperatures? | | | | vapor in the atmosphere, which in turn will |
| Alright, now we can take a look at what scientists | | | | increase the temperature, and so on. Thus, a |
| say about world temperatures. | | | | slight effect created by other greenhouse gases |
| Again, we are going to leave out the reasons | | | | has a much larger impact, due to the creation of |
| why, and simply look at whether or not the | | | | additional water vapor in the atmosphere. |
| Earth's general temperature is rising. | | | | Greenhouse gases: Facts and Figureslet's go over |
| According to NASA scientists, the average | | | | some facts and figures here. Again, keep in mind |
| temperature of the earth rose by one degree | | | | that these measurements are taken by scientific |
| Celsius, over the last century. This is based on | | | | tools. They are not statements for or against |
| actual measurements taken with exact measuring | | | | global warming. |
| instruments. | | | | - The amount of carbon dioxide in our |
| Another report, which was compiled and | | | | atmosphere has increased by 25 percent since |
| submitted by 600 scientists from the | | | | the early 1800s. Ten percent of this increase has |
| Intergovernmental Panel on Climate Change, made | | | | occurred between 1958 and the present day. |
| the following statement: | | | | - There are two main factors that responsible for |
| "Warming of the climate system is unequivocal." | | | | the increase of carbon dioxide. The leading cause |
| These 600 scientists sifted through thousands of | | | | is the burning of fossil fuels. Next in line is |
| studies and reports, in order to come to the | | | | deforestation. |
| above conclusion. | | | | - Methane content in the world's atmosphere |
| Even scientists who are "opposed" to the global | | | | increases at a rate of 0.6 percent per year, by |
| warming theory are not contradicting the fact | | | | current measurements. The atmospheric methane |
| that the earth's temperature is rising. These | | | | content is now more than twice as high as it was |
| scientists are only saying that global warming is a | | | | before the Industrial Age, which started in the |
| natural phenomena, and is not caused by man. | | | | early 1800s. |
| The Causes of Global Warming There are several | | | | The Effects of Global Warming |
| factors that could contribute to or influence global | | | | I am not the doom-and-gloom sort of person, so |
| warming. | | | | I am going to spare you the details here. But I do |
| Greenhouse gases are gases that prevent heat | | | | have an opinion on this subject, so I will share it |
| from escaping from the Earth's atmosphere. A | | | | with you. |
| few examples of greenhouse gases are: | | | | Regardless of whether the globe is warming or |
| - Carbon Dioxide - A minor but important part of | | | | not, it is simply common sense to take care of |
| the Earth's atmosphere. Carbon dioxide prevents | | | | the environment you live in. |
| heat from escaping earth, by blocking infrared | | | | The plain facts of the matter are that carbon |
| radiation reflected off the Earth's surface from | | | | monoxide is unhealthy, methane makes for |
| leaving the atmosphere. | | | | unpleasant breathing, and nitrous oxide in the |
| - Methane - A gas produced through the | | | | atmosphere is not a laughing matter. |
| decomposition of waste (in landfills, animal waste, | | | | While the lack of ozone might make for faster |
| and decomposition of food in human and animal | | | | tanning at the beach, the long term effects are |
| digestive systems). It is created by the | | | | not as desirable. |
| production and distribution of natural gas, oil and | | | | What You Can do About Global Warming |
| coal. It is also is produced by incomplete fossil-fuel | | | | Believe it or not, you are important - what you |
| combustion. | | | | do and say is listened to by others, and does |
| - Nitrous Oxide - Another gas produced through | | | | make a difference. It doesn't require a lot of |
| the use of commercial fertilizers, natural fertilizers, | | | | effort to do something about conditions in the |
| and fossil fuel combustion (cars, trucks, buses, | | | | environment. A little extra care will go a long way. |
| airplanes, and conventional power plants, to name | | | | Many are already doing it, and all of us need to |
| a few). | | | | get aboard. |
| - Chlorofluorocarbons - Commonly referred to as | | | | It starts as simply as recycling your waste, saving |
| CFC gases, these are produced primarily by our | | | | energy where you can, or even planting a tree. |