I can not say I am sad to have this be my last blog post but when I begin to really sit down and write my paper, I may be thanking Mr. Coffee for making this a required thing. My book is still going well but I have not yet finished. My blogs so far have just been random topics that I have thought about and then researched or heard about in environmental science class and my last blog will be another one of those. When I write my paper I am hoping to find a link between all of these and weave them into a wonderful presentation.
Today I thought about all the harmful effects of farming in terms of fertilizers but also in how much water farms use. After researching this topic, I was amazed at how much it truly is. Only 3 percent of water on earth is fresh water. Of that 3 percent, only around 23 percent of it can be used by humans. 22 percent is under ground and .5 percent is in bodies of waters such as lakes, rivers and streams. I then looked at how that usable water is divided. I found 70 percent goes to agriculture and the remaining 30 percent is used in homes.
So how is this water used? There are four main types of irrigation: furrow, flood, spray, and drip. Furrow is where trenches are dug and constantly filled with water. This is only 65 percent efficient. So much water is lost due to runoff and evaporation. It just seems irresponsible to me that this practice is still used even though it is proven to have a large amount of loss. The most water efficient irrigation is drip method. Water slowly drips from hoses on to the ground and is 95 percent efficient. So much water could be saved if farmers changed to the more expensive but also more environmentally friendly alternative.
Going through all this research has just showed me how much more could be done to help the environment but it is not done because you can earn a few extra bucks doing it a different way. I want my project to have meaning and send a message. I am actually excited to start my paper.
Good times blogging.