Individual Work
Week 2
7/24/2013
* Discuss how humans impact each cycle.
The human’s impact on The Carbon Cycle would have to be the significant processes which are diffusion exchange between the atmosphere and the oceans, and the combustion of fossil fuels, which release CO2 to the atmosphere. The human’s impact on The Phosphorus Cycle would have to be the Phosphorus that is mined in several locations around the world and is then made into fertilizers, animal feeds, detergents and other products. The human’s impact on The Nitrogen Cycle would have to be the substantial of the human involvements. This cycle is also has both processes benefit human welfare profoundly and the humans action to more than double the rate at which nitrogen is moved from the atmosphere to the land.
* Give specific examples of each cycle and how humans impact these cycles.
The examples for The Carbon Cycle for the human impact would have to be the burning of fossil fuels, and the increased of the atmosphere carbon dioxide by over 35% of preindustrial levels.
The examples for The Phosphorus Cycle for humans impact would have to be the accelerating the natural phosphorus cycle as it is mined from the earth and as it subsequently moves from the soil into aquatic ecosystems, creating problems as it makes its way to the oceans.
The examples for The Nitrogen Cycle for humans impact would have to be the involvement in the nitrogen cycle is the substainal and also the actions that are more than double the rate as the nitrogen is moved from the atmosphere to the land.
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