“ A recent government report states that the atmospheric level of C O 2 has increased 30% since 1860” this statement has to be evaluvated using the data in given figure. Concept introduction: • Greenhouse gases are one type of gas which traps the heat within the system and thus it increases the overall temperature of the earth resulting global warming . Examples: C O 2 , C H 4 .. • Greenhouse effect: The heat near the earth surface gets trapped by the gases present in the earth atmosphere. The carbon dioxide is the primary gas that traps more heat.

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Chapter 3.2, Problem 3.6SC

(a)

Interpretation Introduction

Interpretation:

“ A recent government report states that the atmospheric level of CO2 has increased 30% since 1860” this statement has to be evaluvated using the data in given figure.

Concept introduction:

• Greenhouse gases are one type of gas which traps the heat within the system and thus it increases the overall temperature of the earth resulting global warming.

Examples: CO2,CH4..

• Greenhouse effect: The heat near the earth surface gets trapped by the gases present in the earth atmosphere. The carbon dioxide is the primary gas that traps more heat.

(b)

Interpretation Introduction

Interpretation:

A global warming skeptic states that the percent increase in the atmospheric level of CO2 since 1957 has been only about half as great as the percent increase from 1860 to the present. The accuracy of this statetment has to be commented and the affect of these condition in potential greenhouse gas emission policy has to be provided.

Concept introduction:

• Greenhouse effect: The heat near the earth surface gets trapped by the gases present in the earth atmosphere. The carbon dioxide is the primary gas that traps more heat.

• Greenhouse gases are one type of gas which traps the heat within the system and thus it increases the overall temperature of the earth resulting global warming.

• Examples: CO2,CH4..

• The ability of a trace gas to cause global warming is described by its Global warming potential (GWP) and it is related to the lifetime of a gas in the atmosphere as well as the ability of a gas to absorb IR radiation.

• The lifetime of a gas in the atmosphere and its ability of a gas to absorb IR radiation are the two properties which are included in the calculation of the global warming potential

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