„Ozone Layer and Global Regulation -The Montreal Protocol and its Amendments“
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Group 4: Adam Martin, Kemmler André, Mazzoletti Piero, Schenk Peter
Group Leader: Baldinini Yvonne, Assistants: Gritti Catherine, Tappeiner Harald
9 $ ! " # $ " According to an existing assumption, the press coverage had an
important influence on the international ozone regime building.
Nowadays people involved in the climate change dispute
complain a misinformation caused by a surfeit of press coverage.
How does the media coverage on environmental problems
function? Has the press coverage of environmental problems
changed?
The main point of this examination was to figure out, if there are
differences between the media coverage of climate change and
ozone hole.
Hypothesis ho:
: ; < = < > ?@ AB > C C < = < @ D < > @E ; <F< B > GD A H < = G I < J
Alternative hypothesis ha:
D A H < =G I < J
: ; < = <K> ?LGLB > C C < = < @ D <> @ME ; <KF< B > G
This study is based on investigations of newspapers, television
broadcasts and interviews with journalists.
anthro. caused enviro. problem
Six variables showed a significant
difference.
% & ' ( ) * + * , - & . // % 0 1 - 2
- & 3 .) * & 4 - & ' % 5 + ) * 6 5- 4
The press coverage of the ozone
hole had a significant higher
frequentness of mentions, which
classified
the
environmental
problem as anthropogenic. The
press coverage of climate change
had a high rate of neutral mentions.
+ . / ' 0 ) - 21 / - & % ) . *
In the climate change coverage,
pictured scenarios are significantly
more often used than in the ozone
hole coverage.
The other significant variables are
all arguments:
( - % 5' (
contra
neutral
no mention
anthro. caused enviro. problem
TOPIC:
pro+contra
Pro
_ ` a b a c d ef g h f` a i j b kj l ea c j n f` b g | g p a n km m j d c a }
a n i kb g n o a n f j e | b g l ea o ~ q g r g n a n s t u v w m eko j fa n s x y z {
economical arguments
TOPIC:
- / * & * 48
Pro
Like the economic arguments,
political arguments were mentioned
significantly more often in the
coverage of climate change.
contra
economical arguments
TOPIC:
Climate
no mention
Pro
contra
pro+contra
_ ` a b a c d ef g h f` a i j b kj l ea a m g n g o km j b p d o a n fc .
q g r g n a n s t u v w m eko j fa n s x y z {
The results (frequencies) were proved by Chi-square tests.
500
Ozone
no mention
pro+contra
+ * 5.' ./ 1
no mention
contra
This argument was important for
both coverage, but mentioned
significantly more frequently in the
coverage of the ozone hole.
In the climate change coverage
economical arguments were used
significantly more often than in the
ozone hole coverage.
Climate
neutral
& % ' 0 ) - 7 - / * 5* , 8
The data pool of this study consists of articles from the Swiss
Media Database archive. Considered were articles from three
Swiss newspapers: “Tagesanzeiger”, “NZZ” and “BLICK”, found
by specific keywords. For the press coverage of the ozone hole
articles from 1974 to 1990 were regarded and for the climate
change those from 1993 to 2001.
The following questions were analysed:
• Is the anthropogenic cause of the problem
accepted?
• Which solutions (technological / economical /
political) are recommended and which are
dismissed?
• Which arguments are used to support or reject a
regulation?
• Which organisations are mentioned as source of
information and arguments?
• Are uncertainties or certitudes concerning the
problem and its effects mentioned?
• style and form
Ozone
pro+contra
Health was mentioned significantly
more often in the ozone hole
coverage (skin cancer) .
 € ‚ We interviewed scientific journalists of the examined journals and telecasts.
The intention of these interviews was to get the opinion of the journalists.
400
300
clima
ozone
200
Journalists see the following differences between the ozone and climate
debate in press coverage:
•:
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; ˆ > B < = > @Š; > ?D A @ ? < ‹ „ < @ D < ? Œ> E; G ?
F„ D ;FA = < C G D < E ? Œ E ; < = <G = <F„ D ;I = G H < =  ‡ G Ž < = ? > @E ; <B < … G E < J
NZZ
Blick
medium
evaluated
located
evaluated
located
located
evaluated
100
0
TOPIC:
Pro
Tagesanzeiger
N O P Q R S R T U V W U X P R Y ZP Q ZY [ P W O P R Y ZP \ R S X W Y ] ^
•
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? G @ Ž FA = < J: ; <
 < A  ‡ < ; G H < ? < < @E A AFG @ Ž > D E „ = < ? Œ E ; <@ < ˆA @ < ? ; G H <@ A< C C < D E G @ Ž FA = < J
• ‘ E;
G ?‰I A E< G ? > < =E A B G K
Ž E A‰I < E > @ C A = FG E > A @ C = A F’E ; <‰? D > < @ E > ? E ? ŒE ; < Ž; G H <
@ A E > D < BE ; G E E ; < ŽB <  < @ BA @E ; < FG ? ? F< B > G Œ … < D G „ ? <E ; < ŽˆA = “ˆ > E ; „ … ‡ > D
FA @ < Ž J
•”
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