Friday, March 02, 2007

Global Warming Causes & Effects

Hi, as you can see, I have made my lasts posts about global warming. This may be the last one of this subject so I'll try to make it the most interesting and conclude the subject.

Global warming is the term used to describe the increase of temperature in our planet.

As we have been seeing, global warming is a huge issue we have being dealing with since 1980 and up. People haven’t paid too much attention because if everyone knew the effects of global warming in our planet they would try to solve the problem and work together to stop global heating. In a future, Earth's climate will change forever, when global warming affects the entire earth, there would be nothing we can do to stop it; so we have to begin now, it is the only way to avoid the effects.

The Ozone Layer

The ozone layer is a region of the upper atmosphere, between about 15 and 30 kilometers high that contains a large amount of ozone that absorbs solar ultraviolet radiation. Ultraviolet radiation is terrible for us. It damages the skin, bringing skin cancer to people, it is a horrible disease. So in other words, the ozone layer is a shield that protects us from the suns harmful ultraviolet rays; we are dumb and we are eliminating that protective shield against the suns rays. Many things we do that we have no idea may be damaging our planet. The biggest hole in the ozone layer, where the harmful rays of the sun penetrate with more power causing more damage is at the poles. The worst of all is that the biggest amount of snow is at the poles, and there are the biggest holes of the ozone layer, so the ice and snow would melt faster.
We need to protect the ozone layer because it is what protects us, so if the ozone layer last longer, so do us.

Causes

The causes of global warming, also called global heating are created by many products made for human use, like cars. Cars are one of the objects that affect the most the ozone layer. The gases that come out from the muffler, emitted by the engine, cause the ozone layer to disappear; it makes the ozone layer weak. Global warming is mainly caused by the burning of fossil fuels, which increases the levels of greenhouse gases in our atmosphere. The United States is the world's largest producer of greenhouse gases that cause global warming, producing 25% of worldwide emissions. According to the EPA, the main causes of U.S. Global Warming pollution are:
Electricity Generation: 33.9%
Transportation: 26.8%
Industry: 18.8%
Agriculture: 7.6%
Residential: 7.6%
Commercial: 4.7%

Effects

Global warming will be caused by use, so we are the ones who will suffer the effects, and we are also dragging animals and the world with us, because all are going to be affected. Scientists estimate that global temperatures could increase between 1.4 and 5.8 °C by the year 2100, that’s a lot. Scientists have observed that these have been one of the hottest 12 years ever.

According to NASA, the polar ice cap is now melting at the rate of 9 percent per
decade. Arctic ice thickness has decreased 40 percent since the 1960s. http://www.earthinstitute.columbia.edu/crosscutting/climate.html

Global warming is terrible for our health, our planet, our selves, animals, the environment, the entire world would change, and this would be very different than before.
Animals are one of the most affected by global warming. Polar bears may extinct in a close future, global warming is melting the ice and snow left in the planet. The natural disasters caused by earth have been increasing; the number of Category 4 and 5 hurricanes has almost doubled in the last 30 years. The sea level have rise a lot and will continue to rise, in a future, the oceans would be bigger and the land will be smaller, when all the ice and snow from the earth has melt. This rising of sea level created coastal flooding, tsunamis, hurricanes, tornadoes, all of this caused by climate change.

Conclusion

To conclude, the environment is changing every year, we need to stop this change and protect earth. The earth is destroying with all this climate changes, natural disasters, and worst, humans. Humans are the ones who have the fault, we have the fault of global warming damaging the earth so WE have to take responsibility to protect it and try to avoid this disaster.

HELP THE ENVIROMENT, PROTECT THE EARTH

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