Water supply and water pollution

Water supply and water pollution essay

a . Two primary areas of crop production inside U .S . are the Excellent Plains and Southern California. Each regions are getting dilemma owning enough water to grow these crops.

Describe what changed in each region`s water provide and/or demand and explain why this occured.

The low level of precipitation and its uneven distribution on a prairies in combination with evapotranspiration has produced redistribution on the available offer of water Good Plains hard (On the Great Plains, 2006) Furthermore, the changes from the climate in Great Plains was a large contributing point on this problem.

The weather changes in Southern California was also the lead to of owning adequate water to your area. The unpredictable climate changes from flood to drought . It has been noted that there was a six-year drought in between 1987 and 1993 was followed by five years of above-normal precipitation from 1995 through 1999. One more dry cycle occurred between 2000 and 2002, but thanks to late-season rains the water year that ended in September 2003 had near-average precipitation (Totten, 2004. Furthermore), the growing population of California has been much more issue contributing to this problem.

b . There's considerable debate on the removal of dams in particular areas in the U.S. what are some of the pros and cons of dam removal cite 3 particular examples of dams that were removed or are under discussion for removal either inside the U.S. or in other nations. what are the particular factors for removal cited within the situation of these dams (8 points).

The dam removal campaign has been quite successful specifically when they have proved that it's most advantageous to eliminate these dams since (1) to save dollars, due to the fact dam maintenance requires large amount of money (2) some of the dams are so old and do not serve its purpose at all and it just pause as danger to persons living near individuals dam. On the other hand some of these dams can produce electricity for your local community.

Reason for removing the dams

Cold Creek, California - Lake Christopher Dam was removed, which improved water quality, restored migratory and resident fish habitat eliminated a capability flood hazard, and restored a mountain meadow.

Whitestone Creek, Washington - Rat Lake Dam was removed , which eliminated a severe public safety threat, provided a least cost product or service towards dam owner , restored the natural shoreline habitat, and resolved a legal liability dispute.

Baraboo River, Wisconsin - Waterworks Dam was removed, which dramatically improved a sport fishery, restored rare riffle habitat started out the revitalization on the local community 's urban riverfront eliminated a public safety hazard, and saved taxpayer money...