At present the most important are methane (CH4), man made chlorofluorocarbons CFC-11 and CFC-12, nitrous oxide (N2O), and ozone (O3) in the lower atmosphere. ... Nitrous oxide is released as a result of coal combustion and in the breakdown of agricultural fertilizers. ... Atmospheric concentrations of the principal non-CO2 greenhouse gases are increasing from between 0.3% per year in the case of nitrous oxide to 5% per year in the case of CFC-11 and CFC-12. ...

• Word Count: 2775
• Approx Pages: 11
• Grade Level: Undergraduate

ABSTRACT In the contemporary world environmental crisis is considered as one of the burning issues for human being. We are now entering into the post modern era, yet environmental degradation exists as a major concern. Though it touches the mind of all the key thinkers, it seems to remain a threat. With the help of world organizations and governments, we are trying to get rid of this problem. But if the people of all walks of life do not become conscious about the prevention of such kind of degradation, obviously these will not have any result. ...

• Word Count: 6083
• Approx Pages: 24
• Has Bibliography
• Grade Level: High School

ABSTRACT: In the contemporary world environmental crisis is considered as one of the burning issues for human being. We are now entering into the post modern era, yet environmental degradation exists as a major concern. Though it touches the mind of all the key thinkers, it seems to remain a threat. With the help of world organizations and governments, we are trying to get rid of this problem. But if the people of all walks of life do not become conscious about the prevention of such kind of degradation, obviously these will not have any result. ...

• Word Count: 6082
• Approx Pages: 24
• Has Bibliography
• Grade Level: High School