Greenhouse effect caused by hole in atmosphere
Variable: grntest3
Module:
ISSP Environment
Subject:
Environment
,
Knowledge
Survey Questions
Questions associated with this variable:

And for each of these statements, just check the box that comes closest to your opinion of how true it is. In your opinion, how true is this?
C. The greenhouse effect is caused by a hole in the earth's atmosphere.

Year Availability
Available in 3 of 32 years total. Hover over a year to see ballot information.
72
73
74
75
76
77
78
80
82
83
84
85
86
87
88
89
90
91
93
94
96
98
00
02
04
06
08
10
12
14
16
18

Summary by Year
Showing All Years
Code Label
1 Definitely true
2 Probably true
3 Probably not true
4 Definitely not true
8 Don't know
9 No answer
0 Not applicable
1993 1994 2000
267 211 202
609 548 443
188 211 221
187 143 149
222 228 192
84 45 69
49 1606 1541
Summary Statistics
Valid cases 3379
Missing cases 59087