What are the main causes of global warming Essay

What are the main causes of global warming - Essay Example The earth’s atmosphere usually traps solar radiation, through gases such as Carbon IV oxide, methane and water vapor; these are called the greenhouse gases, which allow incoming radiation to pass through, but traps and retain the heat radiated back from the earth’s surface (Dahlman & Renwick 96). This phenomenon is called the greenhouse effect. Global warming is simply an enhanced form of the greenhouse effect, caused by a major upsurge in the greenhouse gases in the earth’s atmosphere. The gases trap more and more radiation leading to an overall increase in the earth. For global warming to occur, a lot of factors come into play. However, scientists have concluded that human activity is the leading cause of global warming. This happens in two main ways: burning fossil fuels, which is the main cause and deforestation. When fossil fuels are extracted and burnt, they release CO2 and other greenhouse gases. Increased CO2 in the atmosphere is the biggest concern because it can last in the atmosphere for generations. Deforestation only happens to accelerate the problem further. This is because most of the cleared trees, when burnt, also release CO2. Furthermore, we know that forests require CO2 for photosynthesis. In the process, plants are able to reduce the amount of CO2 in the atmosphere. Clearing trees therefore leads to the build of carbon IV oxide, which in turn raises the earth’s temperatures. Global warming causes climate change (Dahlman & Renwick 96). This is unpredictable and mostly devastating changes in weather such as the Hurricane Sandy and other extreme climatic events such as the melting of the polar ice. These changes therefore call for all the people in the world to join hands to try to reverse and in the end eliminate this process. Among the strategies set forth to combat global warming include afforestation, which is the planting of forests where they were depleted,

The Sale of Human Organs Research Paper Example | Topics and Well Written Essays - 2000 words

The Sale of Human Organs - Research Paper Example This research will begin with the statement that Legalisation of the sale of human organs may seem absurd and weird to some people based on their own different ideologies. However, to some people, it seems very find and they find no problem with it. This is what has therefore brought a huge controversy on the issue of selling human organs. Satz states that arguments have been raised so far to justify the two sides but it is not clear what stand should prevail. What can be traced from history is that all people find the donation of human organs to be something divine but on the contrary, find the sale of human organs to be a sinful act. In regards to this controversy, there are, however, plenty of arguments to justify the sale of human organs. These arguments, by all means, try to reveal the need and advantage of permitting people to make the sale of their organs in open markets without any questioning or any restriction of any kind at all. As much as most countries may hold their law s on the illegality of selling human organs, the laws have no power at all given the fact that people have the free will to make a sale on their sperms and reproductive eggs. Sperms and reproductive female eggs are parts of a human body too and people are allowed to sell them. Hughes argues that there must be no reason to forbid people from selling other organs of their body like liver and kidney. After all, for any human being to decide to sell their organs, it must be out of their own free will and consent.