Assign 5 mjtjm Assignment Example | Topics and Well Written Essays - 500 words

Assign 5 mjtjm - Assignment Example he author demonstrates the questions remains unanswered by stating that there is the absence of accepted viewpoints as the existing hypothesis were mainly on qualitative considerations that allowed different interpretation. The author chooses to use quantitative factors to answer the questions. The author mentions prior research carried out by Humphreys (1929 and others). The researcher considered that the variation of direct radiation was determined by the change in atmospheric transparency due to dust emitted during volcanic eruptions. However, the author disagrees with the findings arguing that the variation of the radiations could also be caused by increased atmospheric dust emitted by human activities1. The author uses observational images from the meteorological satellites, data from geological investigations on the level of volcanic activity and results of calculations of monthly mean values of radiation. There are no sampling issues involved in the research. The dependent variable in the study is that the changes in Earth’s temperature. The independent variables are the variations in the transparency of the atmosphere that depends on the level of volcanic activity. The hypothesis to be tested is precise as temperature change is related to change in solar radiations2. The author uses inferential statistics which is an appropriate approach based on the data available. The assumption is that the change in temperature and transparency in the atmosphere are linear. The author’s findings are that human activities influence the climate as the activities produce energy that produces heat that is an additional to the heat generated by the solar radiations. The author has an expectation that one of the glaciers expansions could reach the critical latitude that would result in complete glaciations of the Earth setting in. The author borrowed the conceptual definition from a piece of prior research3. The author concludes that human activities should be taken