Extinction Theory and Its Impact in Contemporary Society
The apparently sudden mass extinction of Dinosaurs marks the boundary between the Cretaceous and Tertiary periods. This catastrophic event has also triggered a large amount of interest in both scientific and general communities. Many speculations have thus been made regarding the reasons for the death of the dinosaurs. These include extreme changes in the global climate and sea levels, and supernova explosions.
During the 1980's notable new theories emerged regarding the mass extinction of dinosaurs. There has also been a concentrated effort to research these theories in terms of possible dangers to the human race. Luis Alvarez for example originated the idea of an asteroid striking the earth to cause the catastrophic demise not only of prehistoric reptiles, but also of most of the life forms present on the earth of the time.
According to the Alvarez theory, the environmental consequences of the alleged impact include a massive and catastrophic chain reaction. The asteroid striking the earth caused dust to cover the atmosphere on earth, resulting in continued darkness. This is referred to as "impact winter." The chain reaction involved the initial demise of plants, then of the animals depending on the plants for life, and finally the predators depending upon other animals. Other elements added to this theory...
The central issue remains the status of the sea; which has prevented any real efforts towards negotiations that could solve the environmental problems. (Experts debate ailing Caspian Sea) Therefore the pollution and other environmental problems in the Caspian Sea and in the region will continue until there is a form of political agreement that can lead to cooperative environmental efforts. 4. Conclusion In conclusion, the problem of pollution and the reduction
FSC encourages businesses in Argentina using forest resources to promote a sustainable business policy and discourages businesses that neglect environmental and habitat concerns. Thus the FSC in effect is a global collaborative effort to minimize environmental damage and promote environmentally sustainable business practices and by doing so, protect our world from threats of global warming, acid rain, drastic climatic shifts and other serious consequences of environmental destruction and pollution.
Environmental Problems Caused by Humans The old growth forest is rich ecosystems which provide a home for Northern spotted Owl at the same time a habitat for the primary prey for the owl. However the same trees of firs and cedars that serves as a habitat for the owl is also the primary source of a lucrative multibillion dollar logging industry. If there is a destruction of the forest due to
In India, the government is attempting to bring the focus of attention on the presence of fine dust particles as well as the presence of fly ash in the air, and this attempt is being carried out by a series of mitigation measures. The need of the day is to take certain practical steps that would succeed in tackling the problem to some extent, and it is towards this
Some forms of energy, such as wave and tidal energy and hydrogen fuel cells are still being studied. Another writer states, "Techniques to harness the energy found in the oceans are best developed for tidal power, wave power and ocean thermal energy conversion" (Middleton 52). Many other types of alternative energy, such as solar, wind, biomass, and geothermal energies are all being used where they make sense. Other solutions
Sustainability More About Politics Than Science? The environment is a word which refers to the natural effects around us including the atmosphere, seas and oceans, rocks and mountains, plants, ice formations, human beings, stars and several others. These effects are best left in their natural state because when they get disturbed, they could have serious consequences on the atmosphere, electricity, water, weather, fire and the earth's magnetism. Sadly, this is
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