In this project I aim to explain the contributes to the environment by the actions of humans and display the consequences.
I am going to divide the project into different sections and then sub sections to make the project easier to navigate around and keep the information in relevant sections.
• Section 1: HABITAT REDUCTION BY HUMANS.
* The building of houses and roads
* The draining of wetland areas
* Recreational uses
• Section 2: POLLUTION.
* WATER POLLUTION- sewage, fertilizers, chemicals and eutrophication.
ü AIR POLLUTION- Sculpture dioxide from burning fossil fuels leading to acid rain, carbon dioxide from burning of fossil fuels and methane from cattle and rice fields leading to greenhouse effect and global warming.
* LAND POLLUTION - pesticides, herbicides, and nitrates wash into rivers and lakes affecting food chains.
Habitat reduction by Humans
Human beings are dependent on the Earth's diversity of species for our survival. Wild species play a vital role in the maintenance of the planets ecological functions, yet everyday on the planet 40-100 species become extinct. Many countries across the world have not got an endangered species act that is strong enough to protect varying species from the destruction of humans.
All over the globe humans are determined in building more houses and roads to supply the growing population of its residence, making their Lives easier but not sparing a thought to the many habitats, lives and even species that they will destroy when doing so. A recent local case has been the building of the BNRR. When building houses and roads fields, rivers, ponds, and reservoirs get destroyed along with many animals habitat, leaving them with no where to live and will probably die.
The whole point of crop farming (monoculture) is to remove a mixed population of trees, shrubs etc and replace it with a dense population of wheat or beans. So maximum crop numbers can be achieved every attempt is made to destroy threat to the crop such as pigeons and rabbits, which try to feed on the harvest. The balance between life and natural plant is upset; the animals are forced to live in small areas of woodland, hedgerow or heath. There is not enough food to go around and the stronger survive, many animals will die but some species may even die out.
When draining wetland areas it destroys the habitat of its inhabitants such as fish, swans and ducks. They will move to other areas but this causes that area to become overpopulated and not having enough food for all, causing them to die out.
Waste disposal is a fast increasing problem as the population is increasing so is the amount of waste products. Landfill sites take up space, which would have been used by many different species before it was used for waste disposal. The rubbish makes the land inhabitable for animals also dangerous as many animals get injured by glass, sharp shards of metal, along with others who get trapped in the plastic rings used to hold beer cans and die.
Sewage contains bacteria from human intestine, which can be harmful to humans and animals. These harmful bacteria must be removed along with chemicals such as soap and detergent to make them safe enough to be released into the river. If sewage were released into rivers before being treated it would no doubt kill any inhabitants in the river. Some bacteria cause diseases such as typhoid and cholera when they get inside human intestine. The faces passed by those suffering of the disease will contain the harmful bacteria. If these bacteria was released into rivers and got into drinking water the diseases could be spread to hundreds of people
Many industrial processes produce poisonous waste products. E.G Electroplating produces waste containing copper and cyanide, if release into rivers it would poison animals, plants...
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