Essay On Human Impact On The Environment

The Effect of Humans on the Environment Essay

1075 Words5 Pages

The Earth and the ecosystems we have today have been changed by many years of evolution. During the Earth’s life the world could not stay the same. It had to change and so did the creatures living with it. When the climate changes the creatures living there have to adapt to their new environment; luckily when the environment changes by natural cause it does so very slowly, in most cases, giving the animals time to find the best characteristics to survive. Scientists have studied the evolutionary trail of the Earth’s weather, geography, and animal history. They have found that weather affects all things. Erosion can form or destroy mountains, create oceans, or split continents. Through more study and digging scientists came across the…show more content…

The Earth and the ecosystems we have today have been changed by many years of evolution. During the Earth’s life the world could not stay the same. It had to change and so did the creatures living with it. When the climate changes the creatures living there have to adapt to their new environment; luckily when the environment changes by natural cause it does so very slowly, in most cases, giving the animals time to find the best characteristics to survive. Scientists have studied the evolutionary trail of the Earth’s weather, geography, and animal history. They have found that weather affects all things. Erosion can form or destroy mountains, create oceans, or split continents. Through more study and digging scientists came across the historical animals, frozen in stone and fossilized. Fossils were and still are one of the greatest ways to study what the weather used to be like. From the beginning of time it was the environment that would ultimately rule the earth. Nothing living on Earth could change what way the wind blew or how much it rained. The ecosystems were set, until weather decided to go a different route. This was true before humans created advanced technology and started using it to cut down trees, level mountains, turn up prairie, and move water. Before the age of technology the weather was invincible, able to put up with anything the living things on Earth could throw at it. Now humans are throwing fossil fuels, plastics, explosives, and much more. The

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The Impact of Human Activities on the Environment Essay

1764 Words8 Pages

The Impact of Human Activities on the Environment

Everything that humans do has some impact on the environment. Pollution is a result of human activities in the environment. The main sources of pollution are farming, water pollution and air pollution.

Farming is having an increased impact on the environment. This is because there is increased pressure on farmers to produce a single crop and to concentrate on one form of animal husbandry, such as, dairy cattle or pig breeding. This is more economical because better use can be made of equipment and organizations such as supermarkets have fewer farmers to negotiate purchases with. Also transport is much easier so produce can be easily moved to more…show more content…

Pests are organisms that damage or destroy crops and livestock. There are different types of chemical pesticides for killing different types of pest. Insecticides kill insect pests, herbicides kill weeds and fungicides kill disease- causing fungi. Biodegradable pesticides are broken down by the activities of organisms and only remain in the environment for short time after they are applied. Non-biodegradable pesticides cannot be broken down by organisms and remain in the environment for long periods. Bioaccumulation of non-biodegradable pesticides happens in food chains and webs.

Some modern farming practices are damaging the environment and the destruction of habitats reduces the diversity of ecosystems, making them less stable and farming less sustainable. A balance is needed between increasing food production and the need for conserving the environment. Alternative strategies need to be used in order to achieve this. If organic fertilizers are used too much little humus is added to the soil, they damage communities of microorganisms involved in decomposition and the nitrogen cycle, it damages soil structure leading to increased erosion and it increases the risk of eutrophication due to run off. Organic fertilizers such as manure avoid these problems and

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