Evolution of Earth
Scientific Explanations...
Work, Energy, & Environment
Global Warming vs. Ozone Depletion


Describe the following phenomena in your own words, using figures if appropriate. Write these answers as if you were explaining to a friend who is not in this course.

  1. The difference between the stratospheric ozone issue and the tropospheric ozone issue. In your explanation:

    1. Describe the phenomenon and its consequences clearly.
    2. Discuss the differences in impacts and possibilities of mitigation of the undesirable effects.

  2. The greenhouse effect. Life as we know it is possible on earth because of the greenhouse effect. Why, then, is the "greenhouse effect" considered a problem?
  ©Copyright 2003 Carnegie Mellon University
This material is based upon work supported by the National Science Foundation under Grant Number 9653194. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.