On the positive side the dam is a renewable energy source but environmentally speaking it has done more damage than good. The construction of the TGD has had a huge negative impact on the environment all along the river. The controlled water flow has caused a decrease in water quality and changed the niche of many wild life species. Fish can’t simply swim up and downstream freely anymore which can affect their diet and matting patterns. The water behind the reservoir has destabilized some of the steep hills on the edges of the water causing landslides that can be very dangerous.
The dam was built to create electricity and water storage for their population which is migrating from a sustainable existence to a more urban culture. Since more Chinese gave up farming, the cities in which they do need more electricity and water than the cities in a rural existence. Also, It will prevent heavy floods downstream. The dam will conduct eight times the megawatts of what the Hoover Dam produces. The dam was completed in 2009, and cost around 24 billion dollars.
So for this question we would like to research and find out how we can cut down on some of the things we do in our daily life so we can help the environment and we can make our resources close to unlimited then limited. In the past years it has been a struggle to get clean water in china. The china water crisis threatens the stability and prosperity. Jeremy. M. says “Most of China’s 617 cities face water issues.
There were also old Egyptian structures that had to be carefully moved to avoid destruction from the new path of the river. These relocations sparked controversy and resistance from the Egyptian people due to the old structures being a large part of the tourist attraction in Egypt. Another big problem the Dam caused was with the soil around the river. Normally the soil was very good for farming, even with the annual floods, but the construction of the Dam caused the nutrients in the water to stop flowing to the soil. The result was poor farmland and in turn, the poverty of the farmers wasn’t completely solved.
With reference to an area that you have studied, describe and explain the appropriateness of flood management strategies? (15marks) The Three Gorges dam on the Yangtze River in China can seem a very appropriate strategy of flood management however there are some negatives that show that is not a full proof strategy. The Three Gorges dam was built in 1994 to try and reduce major flooding in cities such as Wuhan and Nanjing. It is 101m high and as well boasts the largest hydroelectric power station in the world with around 26 turbines. Behind the dam is a reservoir which can hold up to 22km³ of water, this act as a catchment are for flood water.
It was designed to prevent flooding downstream and power up to 15% of China’s energy requirements. This figure has lowered since 1994 due to China’s development. It was also meant to bolster China’s reputation as a green, eco-friendly country. The Three Gorges Dam has many advantages to the local people, such as these: • The Three Gorges Dam has become a tourist attraction with people visiting the dam • The dam produces clean renewable energy. It was initially thought that it would meet 15% of China's energy needs, but this figure has fallen as China has developed.
The forests “breathe” by removing large amounts of carbon dioxide from the air and giving off oxygen. It is feared that the loss of rain forests will increase CO2 levels in the atmosphere and result in global warming. Tribes Tribes Why are indigenous people in danger? When the first European explorers arrived in Latin America, they brought with them diseases such as small-pox, measles, and even the common cold. Europeans were used to these illnesses so they didn’t get sick, but indigenous peoples had never been exposed to these diseases before so many of them became sick and died They live what is called a sustainable existence, meaning they use the land without doing harm to the plants and animals that also call the rainforest their home.
Wetlands can only handle so much of these pollutants, and with the major habitat loss that has completely changed the dynamics of these once seasonal wetlands, can only limit the ability for these wetlands to filter as much of the pollution as possible. There are not enough wetlands in Roseville anymore to have any significant affect to dilute the polluted water and clean it properly for the wetlands to sustain healthy ecosystems. Wetlands are crucial for water, because they filter out the harmful waterborne pollutants and damaging nutrients before they can reach rivers, streams, and lakes. (EPA 2008) We drink from these places and have a responsibility to keep these wetlands intact to ensure they work as they are supposed to. With the recent surge of construction all over Roseville, especially along Route 65, many of the important wetlands have been replaced by buildings, and roads that are pollution sources producing runoff that flows directly into the remaining wetland habitat.
It robs the soil of essential nutrients and releases aluminum in the soil, which makes it hard for trees to take up water. Trees' leaves and needles are also harmed by acids and makes trees and plants less able to withstand cold temperatures, insects, and disease. How does it affect animals? Acid rain makes waters acidic and causes them to absorb the aluminum that makes its way from soil into lakes and streams. This combination makes waters toxic to crayfish, clams, fish, and other aquatic animals.
To purify polluted water we may use different type of methods according to the pollutants entered in the water. Chemical disinfection of water is one of the most important methods in the process of purifying water; this method can kill lots of pathogens that exist in the polluted water by killing them. http://www.informaction.org/images/graph_ocean-pollutants.jpg Fig 1 Water is made up of two hydrogen’s and one oxygen. Most part of the earth is water that means three fourth of the earth is made up of water but the problem is most of it is not suitable for drinking. https://qed.princeton.edu/getfile.php?f=Water_Pollution_since_the_1960s.jpg Fig 2 water pollution world wide In 1854 the British scientist John Snow discovered that cholera disease was caused by the contamination of water, he also showed that chlorine can be used to disinfect contaminated water to prevent such kind of diseases.