...The American West has a major issue on their hands, an issue that directly affects tens of millions of people and a vast area of land. Indirectly, this issue could affect the entire world. The amount of fresh water is limited, and there is conflict over the allocation of this necessary resource. People need an adequate supply of freshwater with good quality, affordable prices and consistent reliability. The survival of human life is contingent on the availability of water. There is no guarantee that water will always be there, and this is becoming more and more evident as population increases and the supply decreases. Two major means for freshwater in the western United States are the Colorado River and the Ogallala Aquifer. These bodies of freshwater have had a vast history of disputes over how they should be allocated, maintained and treated. Up until now, there have been no agreements that have satisfied everyone. The allocation of fresh water resources in western America needs to be secured because if the status quo is maintained, the consequences will be enormous to humans and the environment, as well as the economy, whom are all dependent upon freshwater for survival. The Colorado River has had a long history of water allocation controversies. It is a major river that runs through seven states including Colorado, Utah, Wyoming, New Mexico, Arizona, California and Nevada. It then continues into Mexico and empties into the Gulf of California. This river is 1,450 miles long...
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...The Process of Water Sustainability Looking down on this planet from an outsiders perspective, it would be appear that Earth is composed mostly of land. However through years of research scientists have discovered that Earth is actually primarily made up of water. Approximately seventy one percent of the surface is covered by water, with only three percent of this being fresh water. This small percentage is primarily seen on the surface in snow banks and ice caps. While water has primarily been viewed as a definitive renewable resource for much of human history this new understanding that roughly one percent of the total water on all of planet Earth is both accessible and fresh usable water. One would think that because water is such a vital resource that almost all of the life on Earth depends on; more people would be aware of how it is used and recognize there is not an unlimited supply. However, like other natural resources, it is becoming a precious commodity that is being abused and over used. Thomas Fuller once pointed out, "we never know the worth of water till the well is dry," perfectly describing the current water crisis. With the rapid growth of populations combined with the nonchalant mindsets of many individuals, an even greater problem is stemming from the distribution of water amongst the planets ever expanding populations. If the problems from harmful pollutants, limited education and general misuse of the global water system continues to be neglected and overlooked...
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...The highly controversial, and much disputed issues surrounding the Keystone XL crude oil pipeline project have been under the scrutiny of American politics in recent months. A debate has ensued around national calls for the construction of infrastructure that would transport a crude oil alternative from Canada to the United States, and has rapidly gained increased exposure. This exposure can be attributed to a number of factors, but in large part rising gasoline prices and political pressures are the driving factors. Increased demand for more reliable and stable supplies of crude oil in the United States has been driven by an ailing supply of traditional heavy oil. TransCanada Corporation is a Canadian based energy company which develops and operates energy infrastructure throughout North America. The corporation finds itself at the focal point of the oil sands debate. The transnational corporation has applied for a permit to carry out a $7 billion project by the name of Keystone XL, which would allow TransCanada to construct and manage an oil transport pipeline between the United States-Canada border. The pipeline would transport crude oil produced from oil sands in Canada to oil refineries in the Texas Gulf Coast. Since the pipeline would cross international borders, the project requires the approval of the State Department in accord with Executive Order 13337. It is over this crucial point that much of the discussion has been centered. Time Magazine has dubbed oil sands “Canada’s...
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...文勇的新托福精选阅读（原黄金29篇）真题[2010年4月3日 5.8版本] 俺常常收到同学们的邮件，要我推荐各种各样阅读材料,问我iBT的复习资料中 Barron, Longman, Delta等等哪个更好。我其实很无奈---因为尽管这些机构很大牌,但大牌丝毫都不意味着文章“质量高”(比如你可以想想三鹿奶粉)---说这些机构的文章质量不高,并不是说文字写得不好,而是说这些文章的句子结构, 论述方式, 出题思路与ETS的并不一致(有时候甚至大相径庭)：用这样的材料训练，实在是 事倍功半。 于是，我们实在应该去找找由ETS出的iBT文章来做：（我们能够找到的|由ETS编纂的标准iBT文章有） 1. OG[1]之中的13篇文章[2]；（其中3篇为第三版OG之中的文章） 2. 13次（套）TPO[3]之中的3*13=39篇文章[4]； 3. 早期[5]报名之时ETS赠送的3篇在线测试题 4. ETS官方给出的模考软件之中抽出的1篇文章； 于是这个文档在我的一时兴起之下，出现了： OG拿在手上，可以一个个字的敲成电子版；TPO的所有考试都是在自己的计算机进行，于是可以一边花钱参加考试,一边截图与录像---再利用截下来的图片，逐个的敲下来；早期的ETS赠送的3篇在线测试题，我也恰好有电子版本；官方的模考软件稍微用点功夫，就能将文章提取并复制出来。虽然工作有些繁杂，但总算完成了所有文章的敲打工作。再花了些时间，把这53篇文章都做了答案，附在文章的后面。（由于TPO之中有3篇文章与OG中完全重复,于是减去3篇,只剩下53篇。）同时我还更正了OG上几个明显的错误（详见文后附录）当然，我还做出了方便大家理解文章的参考译文，附在文章的后面。 在这53篇由ETS出的文章没有做完之前，我们实在不应该花时间在任何其他的题目之上。我有时候甚至会对着我的弟兄们高呼：“没有把这53篇做３遍，你好意思上考场么？你好意思花钱在任何一本垃圾书上面么？[6]” 另外，如果你正在准备iBT-SAT-GRE的作文部分或者写留学文书，也应该仔细的琢磨一下这些文章：经过ETS打磨的文章，无一不是精妙绝伦，极具模仿价值。常常有同学拜托我帮她（他）写PS，也说起自己的句子怎么看都像是小学生写的（尽管用上了GRE里面的单词），于是会随口问我“勇哥，您的写作能力是怎么训练出来的。”我说，“看呗，看呗：托福文章看多了，写作能力自然就提高了。” “这ETS的这些文章真的那么好？”。每当听到这个问题，我都会装做赵本山的样子来一句“谁用谁知道～～” 文勇 欢迎进行未删节的转载|且不必告诉我你转载到哪里去|都是一个战壕里面的弟兄啊… 告诉大家一个好消息，本文档中的TPO1-TPO9，以及在线测试题和官方模考题目的解析已经在市面上可以买到了！（好吧，我承认以下显然是广告部分）： 这本《托福真题详解-阅读分卷-第一册》是给弟兄们现在市面上可以获得的TPO1-TPO9阅读部分的文章解析，题目解析，中文翻译和每篇文章的必备词汇：文章解析是为了让大家养成从整体抓文章结构的感觉，题目解析是为了使大家能够在做完题之后知道正确选项为什么对，错误选项为什么错——并且因此来培养良好的做题思路，中文翻译是为了帮助大家扫除那些自以为理解对但实际理解有误的句子，在每篇文章后面配上必备词汇无非是为了节省大家的一些查单词而已。 另外，这本书还包含了一张CD（我想你可能第一次听说阅读书...
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...NaNotechNology applicatioNs for cleaN Water Micro & NaNo TechNologies series editor: Jeremy ramsden Professor of Nanotechnology Microsystems and Nanotechnology Centre, Department of Materials Cranfield University, United Kingdom the aim of this book series is to disseminate the latest developments in small scale technologies with a particular emphasis on accessible and practical content. these books will appeal to engineers from industry, academia and government sectors. for more information about the book series and new book proposals please contact the publisher, Dr. Nigel hollingworth at nhollingworth@williamandrew.com. http://www.williamandrew.com/MNt NaNotechNology applicatioNs for cleaN Water edited by Nora savage Office of Research and Development, US Environmental Protection Agency and (in alphabetical order) Mamadou Diallo Materials and process simulation center, Division of chemistry and chemical engineering, california institute of technology Jeremiah Duncan Nanoscale Science and Engineering Center, University of Wisconsin-Madison anita street Office of Research and Development, US Environmental Protection Agency and Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign richard sustich N o r w i c h , N Y, U S A copyright © 2009 by William andrew inc. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying...
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