It can reduce soil fertility and damage the overall structure of the soil. The lack of organic matter makes it crumbly and more likely to be washed or blown away, the soil is then unable to retain much or any moisture, resulting in lack or crops or grazing material. Ensuing a vicious cycle for the soil. Over-irrigation is an extreme issue as over-irrigated land can cause salinisation, creating impermeable and infertile salty crust in the surface. As this is a key feature of desertification it then means that the land for both these reasons is not able to be used and causing desertification to spread.
For example, there were no longer any engineers left who knew how to build or maintain aqueducts. This meant that when these structures broke they couldn’t be fixed, and so over time there was less provision for clean water. The local population used the stone from the bath houses and other structures to build their own homes as there was less emphasis on public health. The new rulers of Britain did not think it was as important as the Romans had. By 1350 there were some quite serious public health problems in towns, where the lack of fresh water and drainage was a problem which caused the water to be contaminated by other sources and was not healthy to drink.
This is reliable as it is environmental evidence. With the growth of the population came a dangerous vulnerability; the Mayans became unable to adapt to their rapidly changing environment. After extensive research, many archaeologists agree that it is most likely that the Mayans were subject to a lengthened period of severe drought that affected most of Central America. The Mayans lived far from major rivers and relied on water collected by their reservoirs. These reservoirs would not have been very effective during the drought season, resulting in water shortages.
Migrant workers lived on the plantation in either little shacks, or canvas tents, and worked more than 10 hours a day, for not much pay. These workers in the fields relied on their pay, and now they were not getting paid, and that angered the workers. The angered workers were finally seeing their inhumane living conditions for what they were. As the rain poured, their canvas tents were soaking wet with rainwater, and the floor, which was the ground, was covered in mud. “The beating rain worked at the canvas until it penetrated and sent streams down…” (554).With all this rain coming to the California valley, sickness and disease also hit the plantation.
The change in climate and adverse weather conditions led to less agricultural productivity. The malnutrition led to the lack of antibodies people had in their immune system, therefore may have caused the Europeans to die more quickly. Poor sanitation was a major factor in the cities that led up to the contagious symptoms of the plague. The towns had no running water. Without running water, people didn’t bathe or wash their clothes.
Nowadays the urban population is larger than the rural population and growing cities are using rural space to expand, sacrificing natural habitats. This in return has an impact on our environment as bigger cities are responsible for more pollution. A reduction in green spaces due to growing cities has also an impact on our environment as natural habitats are destroyed or restricted, which may result in extinction of certain species. Locally where I live there is currently a huge discussion on building new housing estates on a big green belt around the city however this will not only reduce the green space, it will also build a risk to the new houses of flooding and will have a huge impact on the local environment. Bird and nesting spaces are at risk and the plans will bring a big rise in people moving to this area.
Environmental health Unit 38 P1 Explain how human activity can damages the environment For years now we have been warned about human activity destroying our planet and environment. Some of the things that humans are affecting are Climate Change, Depletion of Ozone Layer, Pollution, Deforestation and Extinction of Species. Overcrowding, urbanisation and population growth Overcrowding can affect our planet more than some people think, Overcrowding means more people this means we use more natural resources this means the earth in the end isn’t going to have enough resources to support the growing population. Remember every person on the planet takes up space which could be used for farmland, and forests. People excrete wastes and litter that flow into water systems, and animal habitats, this is slowly polluting water and killing wildlife.
Some countries, such as Ethiopia and Kenya, suffer from water scarcity meaning there is a major lack of rainfall and physical factors, such as climate, mean water supply is extremely low. However, some countries, such as Mexico, do not have access to clean, uncontaminated water and suffer from water stress. The reasons for this insecurity include physical reasons, over abstraction, poor access to water supplies, pollution, demand and conflict over major, international rivers. In this essay, I will discuss why these reasons cause some countries to feel insecure, and why others don’t. Firstly, we can look at how physical reasons cause insecurity.
Nutritious food is also difficult to get in the Central African Republic. 1. The people of Central African Republic are facing an extreme water crisis. Not only this, but the lack of basic infrastructure and political instability contributes to being an LEDC country. There is a lack of time, money, people and skills to find or filter clean water.
Acid rain as a result of industrialization has had many negative effects on the New England region in particular. The Adirondack Mountains are of special interest due to their soil composition that does not allow for the seizure of the two primary particles in acid rain. This has caused issues pertaining to the water reservoirs in the area that now are sometimes unable to support life do to the high acidity. Acid deposition as it is more formally called is typically composed of sulfur dioxide and nitrogen oxide. These two components are naturally occurring from sources like volcanoes but the industrial revolution has exponentially increased the amount of these chemicals in the air.