11:32 am - Monday May 28, 2012

Environment

The natural environment, commonly referred to simply as the environment, is a term that encompasses all living and non-living things occurring naturally on Earth or some region thereof.

Terminology and Concept

The concept of the natural environment can be broken down into a few key components:

  • Complete ecological units that function as natural systems without massive human intervention, including all vegetation, animals, microorganisms, soil, rocks, atmosphere and natural phenomena that occur within their boundaries.

  • Universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water, and climate, as well as energy, radiation, electric charge, and magnetism, not originating from human activity.

The natural environment is contrasted with the built environment, which comprises the areas and components that are strongly influenced by humans. A geographical area is regarded as a natural environment (with an indefinite article), if the human impact on it is kept under a certain limited level (similar to section 1 above). This level depends on the specific context, and changes in different areas and contexts. The term wilderness, on the other hand, refers to Earth that has not been modified by human activity.

World Environmental Problems

With as much attention as the environment has been getting lately, you’d think that we’d be further along in our fight to preserve the world’s species, resources and the beautiful diversity of nature. Unfortunately, things aren’t nearly that rosy. In fact, many of the environmental problems that have received the most public attention are even worse than we thought – from destruction in the rain forest to melting glaciers in the Arctic.

Global Environmental Causes

All the human causes of global environmental change happen through a subset of proximate causes, which directly alter aspects of the environment in ways that have global effects. We begin this chapter by outlining and illustrating an approach to accounting for the major proximate causes of global change, and then proceed to the more difficult issue of explaining them. Three case studies illustrate the various ways human actions can contribute to global change and provide concrete background for the more theoretical discussion that follows. We have identified specific research needs throughout that discussion. We conclude by stating some principles that follow from current knowledge and some implications for research.

Global Environmental Effects

The technology does greatly affect our lives today. Information and Globalization Revolution brought changes not only to human but also to our nature. These changes are inversely proportionate to the environment because as we demand for high technology we also brought unobserved effects to the nature. Our attention is focused on the major economic problems. But we don’t mind that more attention should be given to our environment. We experienced now a simultaneous typhoons and landslides. These climate changes threatened us because for some of it will going to happen much worst effect that it will cause.

Some major environmental issue:
1. Climate Change
2. Conservation
3. Dams
4. Energy
5. Genetic Engineering
6. Intensive Farming
7. Land Degradation
8. Nanotechnology
9. Nuclear Issues
10. Overpopulation
11. Ozone Depletion
12. Pollution
13. Resource Depletion
14. Toxins
15. Urban Sprawl
16. Waste

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