EOH Essay Example | Topics and Well Written Essays - 1250 words

EOH - Essay Example The measurements are calculated based on a series of questions answered by the person or institution involved (Carbon Footprint Ltd, 2011; World Wildlife Fund, 2007). Briefly, the questionnaire allows the assessment of how much of the pre-determined emission factors are utilized by the institution. The methodology of such calculations is made by the Department for Environment, Food and Rural Affairs (DEFRA) of the British government, which is used by Carbon Footprint Ltd. or the Environmental Protection Agency of the United States‘ Department of Energy, which has its own Carbon Footprint calculation program, and is used by Lexington Global Warming Action Coalition. This report enumerates the carbon footprint value of ’s family, as calculated using different web hosts of carbon footprint calculations. Means of reducing the carbon footprint is also suggested. Finally, the idea of purchasing carbon offsets is tackled in this writing. MY CARBON FOOTPRINT VALUE Table 1. Summa ry of Carbon footprint values, expressed as tons CO2,.as calculated using five different websites. ... The average of the calculated values is 34.92 tons CO2, with a standard deviation of 13.54. What could have caused these high variation in results? COMPARISON OF THE FIVE WEBSITES All of the calculators used the activities at home, specifically the use of appliances, for the estimation of carbon footprint. However, US EPA only takes note of the housing energy consumption, as opposed to the other five websites, which also added transportation as an emission factor. As stated by the Lexington Global Warming Action Coalition, assessment of the carbon footprint using household activities alone is the most basic way of calculating because necessary information can be easily obtained from electric bills. Aside from housing and transportation, coolcalifornia.org also reported greenhouse gas emissions from shopping, which most likely caused its resulting carbon footprint calculation to be the highest of the five. Meanwhile, differences in the values obtained by Carbon Footprint, carbonfund.o rg, and Lexington may be attributed to the differences by which they accounted housing and transportation emissions. Looking closer at the environmental costs of transportation, both carbonfund.org and Carbon Footprint found out that most of the family’s carbon footprint was from car use, which, according to calculations, releases 31.74 and 41.74 tons CO2 respectively (see Appendix). These differences should be taken into consideration. A standardized calculation of Carbon Footprint should be made, because it is a reflection of the countries’ concerted effort on saving the environment. COMPARISON WITH THE AVERAGE HOUSEHOLDS According to coolcalifornia.org, the carbon footprint of ‘s family were mostly caused by shopping expenditures. Briefly,

The Evolution of Linux Research Paper Example | Topics and Well Written Essays - 750 words

The Evolution of Linux - Research Paper Example This document focuses on the evolution of Linux since its establishment to the present version. The main reason for discussing the development of Linux is to understand various changes that have occurred in Linux. In addition, studying the evolution of Linux is of importance to planning for future development of the computer system. The origin of Linux can be traced back to the establishment of UNIX in 1969. UNIX was developed and created at Bell Labs in the process of developing a simple system with recyclable code. However, the primary development of Linux occurred in 1991. Linux was initially developed as a self-contained kernel by Linus Toverlds with a goal of enhancing UNIX compatibility. Development and evaluation of Linux have extensively relied on user collaboration and experience with the operating system from many parts of the world. The system is designed to operate reliably and efficiently on common personal computer hardware although it can also run on other platforms (Silberschatz, 2002). Linux has undergone evolution from one version to the other since it was developed. The first version of the Linux Kernel is Linux version 0.01. The version was developed in May 1991 by the Linux developer Linus Toverlds. Linux version 0.01 had limited features and was limited to specific processors and hardware. The version was only operating on PC hardware and 80386-compatible Intel processors. In addition, Linux version 0.01 was only supported by the Minx file system. It was also difficult to network with the Linux version 0.01 because it had no networking capability (Silberschatz, 2002). On October 5th, 1991, Torvalds released a better version of Linux known as Linux version 0.02 that required Minix to run. However, it received more attention than Linux version 0.01. The kernel improved rapidly within the year, and large number of users and volunteers communicated through social media on the internet. In December 1991, an operational,