Techniques for Providing Fresh Water to Arid Regions Essay

Techniques for Providing Fresh Water to Arid Regions - Essay Example For a pipeline, a network of pipelines will have to be constructed so as to connect various users to the water source. Acquisition of the pipes and the pumps costs a lot of money and the capital costs may force a country to borrow the required resources (World Bank, 1994). Besides, maintenance of the pipelines and checking of water quality should be done constantly, and this again adds to the overall costs which may be extreme in the event the pipeline length is long (Grossman, 2004).Construction of small dams can easily be done with locally available materials and human labour, making it cheaper. According to a study carried out in Kenya, a single sand dam with a capacity of holding 2,000m3 with a life span of 50 years only costs US$ 7,500 (Borst and Haas, 2006). For the large dams, the construction can easily run into billions of dollars considering the scale of the project, materials requires and the machinery and equipment employed not forgetting the technical personnel on the gr ound. IFPRI (1997) observes that the maintenance of dams mainly includes dredging the dams to maintain its depth by scooping the silt deposited on the floor of the dam. This is a capital intensive exercise and it may run into a lot of money. Overall, costs of large dams are so high and can only be funded by large investments in the project probably the government with the help of financial partners.Compared to other methods of provision of water to dry areas, ground water provides the cheaper alternative.

Paper one Essay Example | Topics and Well Written Essays - 500 words

Paper one - Essay Example For me personally I think that the creation story is not really based in fact because there is no proof for any of it. The myth sounds really good and it does provide some kind of explanation for how the world began, but there are so many unanswered questions about it. For example, it has been scientifically proven that the world is billions of years old yet according to the Bible it has only been a few thousand. Something doesnt add up because the difference between these two points of view is rather extreme. I could somewhat believe the Biblical account if it was more in line with what science has proven is real. Another thing that I fail to understand is that global warming is something that is completely dismissed by most Christians. There is no argument for this because evidence shows that the earth is experiencing extreme weather, and this will affect our lives in the future also. It is almost like Christians dont care about the world because they believe that they will go to heaven one day anyway. I can understand that but what they dont realize is that by ignoring the claims of global warming they are making the environment worse for their children and grandchildren. I appreciate the right to free speech, so I am not against Christians for what they believe about the world. I might be attracted more to the religion if it could be modernized and take more of a scientific view of the world. We now live in the 21st century and some things are now fact rather than fiction because they can be proven to be real. Finally, I would say that the Christian world view is becoming less and less popular simply because it has failed to take into account significant changes in our modern society. Nothing lasts forever, but that does not mean that everything about what Christians believe should be thrown away. There are some good things that they believe, yet there are also some things that hold them back. One such example is the