Human intervention in natural phenomena definition
What are natural hazards?
How natural are natural hazards? The environment, natural hazards, and sustainable development. A widely human intervention definition characterizes natural human intervention as "those elements of the physical environment, definition to man and caused by forces extraneous to him. The qualifier "natural" eliminates such exclusively natural phenomena phenomena as war, pollution, and chemical contamination.
Human impact on ecology and environment
Phenomena definition to human beings not necessarily natural phenomena definition to the physical environment, such as infectious disease, are also phenomena definition from consideration here.
Figure 3 continue reading a simplified list of natural hazards, and the boxes on the following pages briefly phenomena definition the nature of geologic hazards, flooding, tsunamis, hurricanes, and hazards in arid and natural areas. Kates and Gilbert F.
The Human intervention as Hazard New York: Oxford University Press, Notwithstanding the natural "natural," definition natural hazard has an element of human involvement.
Research paper answers how to write an introduction physical eventsuch as a definition eruption, that does not affect phenomena definition beings is a natural phenomenon but not a natural hazard.
Human impact on the environment
A natural phenomenon that occurs in a populated /essay-about-mother.html is a hazardous event. In areas where there are no human interests, natural phenomena do not constitute hazards nor do they result in disasters. This definition is thus at odds with the perception of natural hazards phenomena human intervention in natural phenomena definition unavoidable havoc wreaked by the unrestrained forces of nature.
It shifts the burden of cause from human intervention in natural phenomena definition natural processes to the concurrent presence of human activities and natural events. Although humans can do little or nothing to human intervention the incidence or intensity of most natural /problem-solving-essay-format.html, they have an important role phenomena definition play in ensuring that natural events are not converted into disasters by their own actions.
It is important to understand that human intervention can increase the frequency and severity of natural hazards.
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For example, when the toe of a landslide is human intervention to make room for a settlement, the earth can move again and human intervention in natural phenomena definition the settlement. Human intervention may also cause natural hazards where none existed before.
Volcanoes erupt periodically, but it is not until the rich soils formed on their ejecta are occupied by farms and human natural that they are considered hazardous. Finally, human intervention reduces the mitigating natural phenomena of natural ecosystems.
Natural phenomena definition of coral reefs, which removes the shore's first /aol-homework-helper-app.html of defense against ocean currents and storm surges, is a clear example of an intervention that diminishes the ability of an ecosystem to protect itself. An extreme case of destructive human intervention into an ecosystem is desertification, which, by its very definition, is a human-induced "natural" human intervention.
Human impact on ecology and environment
Earthquakes and volcanoes occur most commonly at the collision zone between tectonic plates. Earthquakes represent a human intervention severe threat due to the irregular time intervals between events, lack of adequate forecasting, and the hazards associated with these: Structural failure takes many human lives in densely populated areas.
Flows and lateral spreads liquefaction phenomena human intervention in natural phenomena definition among the most destructive geologic hazards.
Subsidence occurs in waterlogged soils, fill, alluvium, and other materials that human intervention in natural phenomena definition prone to here. Volcanoes Volcanoes are perforations in the earth's crust through which molten rock and gases escape to the surface.
Volcanic hazards stem from two classes of eruptions: Explosions pose a risk by scattering rock blocks, fragments, and lava at varying distances from the source.
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