Another view is the health effects from long-term pollutions. A third view is who hold the companies liable for their contribution to the change in the climate. Some people who cares about the climate and the people who do not care about the environment. Humans are major contributor in changing the environment. “Their influence is known as the greenhouse gases, which are carbon dioxide, chlorofluorocarbons, methane, nitrous oxide, ozone, and water vapor”(“American Meteorological Society 2007”).
According to Merriam-Webster.com “Carbon cycle: The cycle of carbon in the earth’s ecosystems in which carbon dioxide is fixed by photo synthetic organisms to form organic nutrients and is ultimately restored to the inorganic state (as by respiration, protoplasmic decay, or combustion).” The carbon cycle starts with the reservoir of carbon dioxide in the air. It also becomes organic molecules in organisms. The carbon also is respired by plants and animals into the air or is deposited in soil. Some of the processes are significant in transferring carbon. The fossilization of the dead plants and animals into coal.
For instance Carbon Dioxide from the atmosphere is synthesized by plants, which is ingested and metabolized by animals, which is converted to Carbon Dioxide during respiration and decay. Humans remove over 40% of the photosynthetic that effort plants in order to support human enterprises. When humans burn fossils fuels that increases the atmosphere Carbon Dioxide by 35%, then during the combustion stage the present of air (oxygen), Carbon Dioxide and water molecules are release into the atmosphere. Human has an impact on the Phosphorus Cycle as well as the Carbon Cycle. The Phosphorus Cycle is representative of the cycle of all biologically important mineral nutrients-those elements that have their origin in the rock and soil minerals of the Lithosphere, such as iron, calcium, and potassium.
The last stage is denitrification where nitrates in the soil are converted into nitrogen gas by denitrifying bacteria that use the nitrates in the soil to carry out respiration and produce nitrogen gas. This happens in anaerobic conditions. Another ecological cycle is the carbon cycle - all organisms need carbon to make essential compounds. Plants absorb carbon in the form of CO2 during photosynthesis and this carbon becomes part of the plant biomass in their tissues. Carbon is passed onto the primary consumers when they eat the plant, secondary and tertiary consumers obtain the carbon source when they eat other consumers.
I’m going to talk about the Nitrogen, Phosphorus and the carbon cycle. I’m going to tell you about the meaning of each cycle and how human’s impacts each cycle. And what we as human’s can do to help prevent the impacts of each cycle. Carbon is introduced in several different ways. You have animal and plant’s respiration and volcanic eruptions.
Scherrie Smith Environment Science EVS 1001-120 October 26, 2012 Professor Amanda Slaughter How Humans Impact in Carbon, Nitrogen, and Phosphorus Cycle. Carbon Cycle- is the circulation of carbon between living organisms and their surroundings. Carbon dioxide from the atmosphere is synthesized by plants into plant tissue, which is ingested and metabolized by animals and converted to carbon dioxide again during respiration and decay. The human impact on the Carbon Cycle is that human intrusion into the cycle is significant. We are diverting or removing 40% of the photosynthetic effect of and plants.
Fossil Fuels were formed very long ago from plant or animal remains that were buried, compressed, and transformed into oil, coal, or natural gas. The carbon is said to be "fixed" in place and is essentially locked out of the natural carbon cycle (www.koshland-science-museum.org). Humans intervene during by burning the fossil fuels. During combustion in the presence of air, carbon dioxide and water molecules are released into the atmosphere. Phosphorus enters the environment from rocks or deposits laid down on the earth many years ago.
The dead zone is littered with the carcasses of dead sea animals. There are 405 dead zones reported world-wide. Natural and Human Impact Dead zones can be caused by both natural and human impact on the environment. High levels of chemical nutrients (nitrogen and phosphorus) cause algae blooms to flourish. After the algae accumulate, it dies, decomposes and depletes the oxygen in the ocean creating a dead zone.
In this short paper, the change in the ocean chemistry is explored. Scientists have talked much about global warming and climate change, phenomena brought by the increase in greenhouse gases in the atmosphere. There is no other greenhouse gas that influences climate change more than carbon dioxide (Raven et al., 2005). Acidification, which brings changes in the chemistry of the ocean is another problem brought by carbon dioxide. Carbon dioxide does not only cause problems in the atmosphere but also in the ocean.
| | The FACTS-I experiment is testing how elevated CO2 influences tree growth, carbon concentration in soils, and other factors over a ten-year period. | Greenhouse Effect | The greenhouse effect is caused by atmospheric CO2 but is necessary to keep the surface of the Earth at a habitable temperature. | | Increased levels of atmospheric CO2 could cause global warming and significant climatic change. | | Life on Earth is protected from dangerous radiation by a protective layer or ozone molecules present in the atmosphere.