... These emissions blackened the air and water and disturbed ecosystems wherever rivers were dammed for power. The Environmental Revolution is "a coming change in the adaptation of humans to the rising deterioration of the environment". (Wright, 2005). I believe that this type of revolution would require sacrifices but would lead to enormous gains. It would have to start at grass-root level if we want to preserve the world's limited natural resources, its forests, and wild animals. The steps we take now may be crucial in determining the fate of humanity. Ecosystems and How They Work The recycling of elements is another vital functional process occurring in all ecosystems. Describe the biogeochemical cycles for carbon, phosphorous, and nitrogen. How have humans impacted these three cycles? The biogeochemical cycle of carbon constitutes the basic mechanism for the production of renewable resources such as food, fiber, and fuel and for the removal of ...

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