"About 97.5% of all water is the saltwater of the oceans and seas. The remaining 2.5 percent is freshwater-water with salt content of less than 0.1percent. This is the water on which most terrestrial biota, ecosystems, and humans depend. Of the 2.5 percent, though, two-thirds is bound up in the polar ice caps and glaciers. Thus, only 0.77 percent of all water is found in lakes, wetlands, rivers, groundwater, biota, soil, and the atmosphere.
Water dams are made out of concrete so they do not rust, leading dams to be very low in maintenance costs. If someone ever decides to close a dam, it only takes a mater of minutes unlike coal and nuclear plants take days. In terms of irrigation, dams supply 20% of world food production. Twenty-four countries depend on water dams for 90% of their power supply. Water dams have made an important role to our development, and the benefits from them have been great.
These water desalination plants, however, are not a viable option to carry us in to the future due to their potentially harmful impacts and expenses. Before delving in to what is actually wrong with seawater desalination plants, it is important to establish that there are plenty of alternatives available. One of the best alternatives is to adopt more efficient practices, such as conservation of water, and recycling storm water and grey water (from washing machines and bathrooms... ... middle of paper ... ...sequences and are far cheaper. Works Cited 1. Into the Sea: Desalination as Hydro-Social Fix in Spain Erik Swyngedouw, Annals of the Association of American Geographers, Vol.
The main argument people say tap water is better because tap water is way more useful in our daily lives, we can use it to cook, bathe, wash our cars, and fill our pools. However, there are many more downsides to tap than there are good. There are many more cases of tap water being contaminated than there have been of bottled water proving that bottled water much safer to drink. Also to say tap water is free, take into account that most people who rent or own homes have to pay a water bill. “Even a public water fountain is not dispensing “free” water – someone is paying to maintain it” (Water Is Not “Free”).
But the fresh water on the planet makes up just 3 percent of the water supply. And less than 1 percent is freely available because the rest are made up of icebergs, glaciers, and snow caps. The United States population currently consumes twenty percent of the world's energy while only making up five percent of the world's population. That huge discrepancy between the United States and the rest of the world is an indication that if there is a water crisis in the near future, America will more than likely have the largest amount of water available simply due to their economic buying power compared to the rest of the world. Other well developed countries would also have a fair amount of buying power for the small amount of water left, more than likely causing tensions amongst the countries in an already tension-filled environment.
Also, Rogers (2008) notes, “that the problem is well-known makes it no less disturbing: today one out of six people, more than a billion, suffer inadequate access to safe freshwater” (As in New Delhi, para.3). There is no limit of the use of freshwater between one country to another, and it depends on the place people live. Even though there is a lot of freshwater available on the earth, we, people, should be worried about the proper water consumption. In order to thwart the water crisis from occurring one day, we should reverse our trend of using water by desalinating seawater, recycling waste water and reducing the unnecessary demand of water. The first solution to deal with the problem of water scarcity is to desalinate seawater.
The manufacturing of the plastic bottle, cap, and label, requires a copious amount of freshwater. The water required in the production process may not need to be as filtered as the water put in the bottles, but the water still needs to be relatively clean. This water is used to cool and harden the plastic, as well as clean it. Most of this water comes tap water sources; these sources could be used for drinking water from tap or other more important uses. Industrial facilities have become more efficient in their water use, however, an outrageous amount of water is still used in manufacturing processes.
Freshwater is only 3.5% of all the water on Earth. Drinking water is sourced from bodies of freshwater. Freshwater is quite scarce, but it is even scarcer than one might think: about seventy percent of all freshwater is frozen in the icecaps of Antarctica and Greenland and is unavailable to humans. Most of the remainder is present as soil moisture or lies in deep underground aquifers as groundwater. It is not economically feasible to extract this waster for use as drinking water.
We all have our reasons for why we buy bottled water but not many of us realize how much we are actually spending and the impact it has on the environment because we only focus on the convenience of them. Many people think that buying bottled water is safer than drinking tap water. In reality, an organization that helps raise awareness about bottled water, Food & Water Watch, water, most bottled water actually comes from the tap. Therefore, people are spending ridiculous amounts of money on something they can get at home. Food & Water Watch, also states that bottled water costs from $0.89 per gallon to $8.26 per gallon, compared to fractions of a penny for water from our tap.
However, relying on bottled water to keep you hydrated is not the best answer. You may be paying premium prices for bottled water, thinking it’s more pure than your local water supply. But the toll this takes on the environment, not to mention your pocketbook, is enormous. The Questionable Safety of Bottled Water The fact that water is bottled is NOT an assurance of purity. In fact, about 40 percent of bottled water is regular tap water, which may or may not have received any additional treatment.