ISSUE # 4:
METHYL BROMIDE BAN TO PREVENT OZONE DEPLETION?
Charles E. Ophardt c. 1998

DEBATE QUESTION:
Should the United States take a leading role in banning the production and use of methyl bromide because it is an ozone depleting chemical?

Issue 4 Introduction
Debate Question
Internet Resource Sites

 

INTRODUCTION:

In 1987, an international agreement known as the Montreal Protocol on Substances that Deplete the Ozone Layer was signed by many nations. The Protocol required the that CFC production would be reduced to one-half of the 1986 levels by 1998. Based upon a growing understanding of the cause of the ozone hole and the potential for global ozone depletion, approximately 100 nations in 1990, agreed to a complete ban on the use of CFCs in 2000. Subsequently, in 1992, President George Bush ordered the complete halt to CFC production in the United States after December 31, 1995.

Debate on Future Restrictions of Ozone Depleting Chemicals

Montreal Protocol on Substances that Deplete the Ozone Layer
UNEP Supplement to the 1994 Assessments
"4. Summary
This synthesis report examines the scientific, technical, and economic implications for a range of scenarios of possible action that could be considered by the Parties to the Montreal Protocol. The report highlights that, from the scientific perspective of reducing the risks of future ozone depletion, key steps that the Parties may want to consider include:
* Insuring full compliance with the Montreal Protocol as amended in Copenhagen;
* Actions to reduce production and consumption of methyl bromide in non-Article 5(1) countries.
* Actions to collect and destroy existing CFC and halon stocks; and
* Actions to limit future growth in HCFCs and methyl bromide in Article 5(1) countries."


DEBATE QUESTION:
Should the United States take a leading role in banning the production and use of methyl bromide because it is an ozone depleting chemical?



The instructor will divide the students into "YES" and "NO" groups for the purposes of debate.

 MON. LAB

 TUES. LAB

 NO: Students A-L  NO: Students A- P
 YES: Students M-W  YES: Students R-S


RESOURCES:
1. Pamela Zurer, "Fate of Methyl Bromide is Still Up in the Air", C & E News, November 14, 1994. (CHM110 Lab manual).

INTERNET WWW SITES:

Ozone Multimedia Tour


EPA Science of Ozone: Look especially at: Environmental Indicators - Ozone Depletion


Atmospheric Ozone - includes picture and figures, good review


Ozone Depletion Information: More detailed than the previous ones.
Ozone Depletion FAQ Part III: The Antarctic Ozone Hole
Ozone Depletion FAQ Part I: Introduction to the Ozone Layer
Ozone Depletion FAQ Part II: Stratospheric Chlorine and Bromine
Ozone Depletion FAQ Part IV: UV Radiation and its Effects

Stratospheric Ozone Explanations

Sites that support the ban of Methyl Bromide


EPA methyl bromide home page

Business as Usual for Methyl Bromide

ARS Methyl bromide Reasearch and Althernatives


Sites that support the continued use of Methyl Bromide

Methyl bromide use in Forestry - look to about the middle of the page

Soil microbes eat methyl bromide, therefore not as much to react with ozone


Alternatives to Methyl Bromide: Skip down to Introduction for reasons not to ban methyl Br

Methyl bromide Phaseout Site - many links


DEBATE QUESTION:
Should the United States take a leading role in banning the production and use of methyl bromide because it is an ozone depleting chemical?



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