Human caused global warming. Most of scientist said happening now, it’s very obvious, when you look at the temperature of earth, and it is pretty much a no-brainer. (Doskoch, B., 2007). We already knew that earth’s average temperature has risen. Is this a natural happening? We live one planet and we did not find new places to live like earth yet. We have to stop it, but we do not know exactly why it is happening. The sea level is rising gradually, and it would speed up the melting ice caps and exterminate the polar bear. Most of scientists agree that all of mankind did it and do it now; furthermore, world population is increasing for a long time because our science has improved to expend our time of life. It could be made global warming more seriously because of many factories, cars, and houses. There are three main effects of global warming to change climate pattern, ecosystem, and health.
First of all, Global warming could change climate patterns. Global warming caused rising average temperatures and it make waves wormer. Why is it occurred serious problem? Because of fossil fuels, we use it every day, and everywhere. We cannot live without it. We burn it and it makes some of energy to heating, driving, cooling, etc, and it made carbon dioxide, also plants absorb carbon dioxide, but human being could not stop killing that because we need land to live. Ozone is the earth's primary filter for ultraviolet radiation, but carbon dioxide eliminates ozone layer, so it is getting weak, a lot of harmful ultraviolet radiations just increase earth’s temperature. According to an article in the NRDC, "Every year from 1998 through 2006 ranks among the top 25 warmest years on record for the United States, an unprecedented occurrence, according to NOAA." (NRDC “Consequences”, 2007). Beside, warmer temperature could bring high chances of drought, wildfire, and rainstorm, so we should save fossil fuels, or consider alternative resources.
Second, global warming could change the ecosystem. Warmer water in ocean could give serious problem to animals, and it could bring ecological adaptation. In fact, a lot of species already changed appearance, habits, and living places more than before. For instance, polar bears decrease to live in the South Pole because of changed water temperature and lots of ice caps melted, so they do not live on ice caps any longer, and another example is that most of sea turtles in Costa Rica already changed sex to female. According to article, “ Their genes do not directly determine whether a hatching comes out male or female. Instead, buried eggs take their cue from the ambient temperature below 29.4 C produce a clutch that is mostly male; above that, it is mostly female. With a mere 2 degree increase, a nest will produce all females.” (Velasquez-Manoff, M., 2007) This phenomenon could affect humans life because human is highest creature of food chain, so it might make more serious problems in human society in near future.
Last, global warming could affect human's health. These harmful heat waves that were already heated by global warming could bring unusual temperature in several countries or cities; moreover, it should cause spread of diseases. For example, Disease-carrying mosquitoes could spread quickly than before. Those mosquitoes can carry serious illness viruses that can let people sick or die, such as Malaria in Indonesia (NRDC “Consequences”, 2007). So, people just think about how to cure those diseases, but we have to think where those problems are from and how to prevent it.
In conclusion, global warming caused disasters in many parts of environment. Most of important thing is that human being has occurred this disaster, such as changing climate patterns, ecosystem and human’s health. We should consider how to protect our environment from global warming and invent more efficient ways to save fossil fuels for nest generation.
References
Natural Resources Defense Council. (2007, Sep 9). The Consequences of Global
Warming: Unless we act now, our children will inherit a hotter world, dirtier air and water, more severe floods and droughts, and more wildfires. Retrieved on November 14, 2007, from http://www.nrdc.org/globalWarming/fcons.asp
Velasquez-Manoff, M. (2007, June 21). Climate Turns up Heat on Sea Turtles.
Csmonitor.com. Retrieved November 14th, 2007, from http://politicsblog.ctv.ca/blog/_archives/2007/1/22/2674245.html
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