| One of the most serious environmental crises facing | | | | Transportations, factories, electricity from coal-fired |
| us today is global warming. It is the gradual increase of | | | | power plants produce carbon dioxide and other |
| the earth and ocean temperature as a result of the | | | | heat-trapping gas in the atmosphere. Cutting down |
| build up of certain gases which trap heat in the | | | | trees is another significant source of greenhouse |
| atmosphere causing the earth to warm up. These | | | | gases, because fewer trees means less conversion |
| heat-trapping gases are also called greenhouse gases. | | | | of carbon dioxide to oxygen. In addition, research |
| There is currently a huge debate about the warming | | | | shows that burning wood and fossil fuels such as gas, |
| of our planet, and what some say is a rather | | | | coal, and oil contributes carbon dioxide; methane is |
| insignificant effect when you consider the geological | | | | released from livestock and coal production; and |
| record is the cause of human made activity. The | | | | agricultural and industrial processes produces nitrous |
| dangers are well known and understood, significant | | | | oxide. |
| amounts of pollution in our air could result in extremely | | | | Global warming is caused by natural factors and |
| strong rains, which in turn could change weather | | | | human activities indeed. Greenhouse gases are |
| patterns. With time passing more and more Global | | | | naturally in the atmosphere to blanket the earth from |
| Warming activists start to think that it might be a little | | | | extreme temperatures. Natural cycles such as the |
| too late to stop the effects of mankind on the outer | | | | sunspot cycle, tectonic plate movement, and a change |
| atmosphere and that the dangers of global warming | | | | of the earth axis affects the climate. On the other |
| with only increase, resulting in what may seem like | | | | hand, the birth of industrial revolution gives way for |
| catastrophic situations.. | | | | human activities causing the release of carbon dioxide |
| Although carbon dioxide is said to be the cause of | | | | and other greenhouse gases to the atmosphere at |
| more than 60% of global warming, there are other | | | | rates much faster than the earth can cycle them. |
| substances which cause global warming as well, | | | | The dangers and threats of the global warming have |
| including methane, chlorofluorocarbons, and nitrous | | | | already started to materialize, we can the changes in |
| oxides. Did you ever asked yourself why the earth is | | | | the weather, it is warmer in the summers, winter is |
| heating up? Some may say it is a natural phenomenon, | | | | arriving later each year, and the changes in weather in |
| others may claim that man made the changes. As a | | | | many parts of the world are already evident, can we |
| matter of fact, natural causes and human activities are | | | | afford not to take action, and at the very least do our |
| the factors which influence global warming. | | | | best to beat and eliminate this treat to our lives?. |