Tuesday, February 1, 2011

Evaluating contrasting human perceptions of the issue of global warming.


Several postures concerning the issue of global warming were researched, and the more relevant are shown below. Notice that these perspectives contain from how was this issue originated to how would we surpass it.

According to studies, the increase in water vapor, increase CO2 emissions. These emissions cause greenhouse gases, and this are caused by humans, and translates to the global warming issue that we’re facing. According to the United Nations, we are at the end of our times, since we, humans, are accelerating the process of global warming. The United Nations thinks that the increase in carbon emissions, translates to the end of times. However, some English scientists have studied this case of carbon emissions, and they think that carbon emissions do not contribute to global warming. They said that during 1940, carbon emissions increased, but temperature decreased, proving that there was no relation among global warming and carbon emissions.

Other experts think that global warming is a natural process that has occurred in the past. The Artic has warmed up before. However, like it was already said, several people say that this is a myth, and the reality is that we’re causing global warming.

Moreover, several people say that human population can adapt to the new climate changes since they have already made it, however, societies have collapsed before because of this.

Other people have some misunderstandings concerning several terms. Some people think that the ozone hole and global warming are really related. They think that jus because the ozone hole is reducing, global warming is also reducing, but they have nothing to do one with the other.

References
Behreandt, Dennis. "Global Warming Is Not a Serious Problem." Opposing Viewpoints: The Environment. Ed. Louise Gerdes. Detroit: Greenhaven Press, 2009. Opposing Viewpoints Resource Center. Gale. ITESM - OVRC. 1 Feb. 2011 <http://0-find.galegroup.com.millenium.itesm.mx/ovrc/infomark.do?&contentSet=GSRC&type=retrieve&tabID=T010&prodId=OVRC&docId=EJ3010132271&source=gale&srcprod=OVRC&userGroupName=itesmovrc&version=1.0>.

Environmental Defense Fund. "Greenhouse Gases Cause Global Warming." At Issue: Greenhouse Gases. Ed. Ronnie D. Lankford. Detroit: Greenhaven Press, 2009. Opposing Viewpoints Resource Center. Gale. ITESM - OVRC. 1 Feb. 2011 <http://0-find.galegroup.com.millenium.itesm.mx/ovrc/infomark.do?&contentSet=GSRC&type=retrieve&tabID=T010&prodId=OVRC&docId=EJ3010552204&source=gale&srcprod=OVRC&userGroupName=itesmovrc&version=1.0>.

Pollution Management

Major pollutants

Make a table of major pollutants, their causes, effects on health, environment, etc.

Table will be posted soon.

What is pollution?


What is pollution? Presence of a waste or an agent. Going beyond the fact that nature can handle it.
Some kinds of wastes, which toxicity levels are very low, but they are considered to be pollutants. Like in a forest, there is little or no organic solvent, a very small amount of organic solvent can be a pollutant since the ecosystem may note handle it.
Oils spills, is another examples.

Types of pollution
§         Point source: oil spill, because you can track the particular point or place.
§         Non-point source: red tide, it is pretty much everywhere. On the air, water, and soil.