Explain the impact of humans and other living creatures upon the environment.
Discuss how humans impact each cycle, carbon, phosphorus, and nitrogen cycles..
Give specific examples of each cycle; carbon, phosphorus, and nitrogen cycles and how humans impact these cycles.
Humans make huge changes to the environment. We pave the land, we cut down trees, and we create lakes where there were none and form the earth as we please. No other species has as great an impact on the earth.
An example of environmental impact created by humans and other animals is the raising of live stock. Human prefer an increasingly meat based diet. Farmers are raising more live stock like cattle and chickens to keep up with the demand. Cows in particular take a lot of land to raise and they produce a lot of unhealthy gases like methane. Farmers grow grains to supplement the diet of these animals and this overgrowing of particular grains depletes the soil of nitrogen. It becomes a vicious cycle. Humans eat more meat so farmers raise more livestock. The increase in livestock depletes the soil, damages the land, and generates green house gasses.
A brief answer to a very broad and complex question is that human impact reduces the variety with ecosystems by reducing eco-capital through overburdening the productive and replenishing capacity of the system. This result in effects like shrinking estuaries, dead zones in oceans, diminishing niches and habitats. The effect doubles back on humans and reduces food and supply networks.
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