<template name="globalwarmingconcern">
 <title>Attitudes about Global Warming in the United States</title>
 <dataset id="04658">ABC News/Stanford University/Time Magazine Environment Poll #1, March
  2006</dataset>
 <dataset-id>04658</dataset-id>

 <discipline>Sociology</discipline>
 <subject>Sociology</subject>
 <subject>Environment</subject>
 <subject>Attitudes</subject>
 <atype>Crosstabulation</atype>
 <guidetype>Descriptive</guidetype>
 <citation>Inter-university Consortium for Political and Social Research. Attitudes about Global
  Warming in the United States. Ann Arbor, MI: Inter-university Consortium for Political and Social
  Research [distributor], 2011-06-30. Doi:10.3886/globalwarmingconcern</citation>

 <section id="a01">
  <title>Goal &amp; Concept</title>
  <p>
   <strong>Goal</strong>
  </p>
  <p>The goal of this module is to explore some of the factors that might be associated with an
   individual's level of concern about the environment and global warming. Crosstabulations,
   frequency distributions, and bar charts will be used.</p>

  <p>
   <strong>Concept</strong>
  </p>
  <p>There has been much discussion in the media over the condition of the natural environment and
   what can be done to decrease pollution and preserve natural resources. Activists have adopted an
   approach that appeals toward educating the general public and pressuring national governments and
   policymakers to act in ways that demonstrate a greater concern for the quality of the natural
   environment. Much of the discussion in the media over the past two decades has centered upon
   global warming.</p>
  <p>Although most people are concerned about the condition of the natural environment, there is
   some diversity in the amount of concern both across and even within nations. The issue is
   interesting because it has a scientific basis, yet there is some disagreement between scientists
   regarding the potential severity of the issue. These disagreements allow both business leaders
   and environmentalists to draw upon scientific arguments to support their case when addressing
   policymakers. Focusing upon the U.S. experience of the global warming debate, it seems that the
   issue has become politicized.</p>
  <p>Social researchers are often interested in studying attitude formation and why certain groups
   of individuals seem to have similar attitudes about issues. Global warming is a relatively new
   issue to the non-scientist community and this newness allows the researcher to explore the early
   phases of attitude formation.</p>
  <p>In this guide, we will consider the results of a national poll focused upon the environment and
   global warming.</p>

  <p>Examples of research questions regarding attitudes about the environment:</p>
  <ul>
   <li>What factors are associated with the level of concern that Americans have about the current
    and future condition of the environment?</li>
   <li>Do men and women differ in their level of concern about the environment?</li>
   <li>Do people with more education tend to be more concerned about global warming?</li>
   <li>Do people with higher levels of trust in scientists exhibit more concern about the
    environment?</li>
   <li>Are parents and grandparents more concerned about global warming than their
    (grand)children?</li>
  </ul>
 </section>


 <section id="a02">
  <title>Dataset</title>
  <p>This <a href="http://dx.doi.org/10.3886/ICPSR04658">ABC/Stanford/Time Magazine special topic
    poll</a>, conducted March 9-14, 2006, is part of a continuing series of monthly polls that
   solicit public opinion on the presidency and on a range of other political and social issues. The
   focus of this particular data collection was on environmental issues. Respondents rated the
   condition of the natural environment and identified the most important environmental problems
   facing the world. Several questions asked how important the issue of global warming was to
   respondents, how much they knew about it, how serious a problem it was, and how much could be
   done to prevent future global warming and reduce its effects. Additional topics addressed
   changing local and worldwide weather patterns, scientists' assessments of the environment and
   global warming, whether the federal government should require companies and individuals to take
   measures to reduce global warming, and what type of vehicle respondents drove. Demographic
   variables include sex, age, race, education level, religious preference, household income,
   political party affiliation, political philosophy, type of residential area (e.g., urban or
   rural), whether respondents had any children or grandchildren, and whether they considered
   themselves born-again or evangelical Christians.</p>
  <p>The responses of the participants in the study should be representative of the adult population
   in the United States at the time the study was conducted.</p>

 </section>


 <section id="a03">
  <title>Variables</title>
  <p>This exercise will use the following variables:</p>
  <ul>
   <li>Rate the condition of the natural environment in the world today (Q1)</li>
   <li>Compared to 10 years ago, is natural environment better, worse or about the same (Q2)</li>
   <li>Thinking ahead to 10 years from now, will environment be better, worse, or about the same
    (Q3)</li>
   <li>How important is the issue of global warming to you personally (Q19)</li>
   <li>About how many years from now will global warming be a serious problem (Q24)</li>
   <li>Grandchildren under age 18 (Q35)</li>
   <li>Party ID (Q901)</li>
   <li>Highest level of Education (Q909)</li>
   <li>Children under age 15 (Q915)</li>
   <li>Highest level of Education, combined categories (EDUBREAK)</li>
   <li>Race (Q918)</li>
   <li>Race, combined categories (RACENET)</li>
   <li>Gender (Q921)</li>
  </ul>

  <p>For ease of interpretation, recoding variables is sometimes necessary or helpful. (Note: the
   online analysis package used here requires recoding variables for the sole reason of modifying or
   adding labels.) The following variables were recoded:</p>
  <ul>
   <li>Q19 (How important is the issue of global warming to you personally?) was recoded into
    GWIMPORTANCE. The new variable contains only two response categories: the responses "Extremely
    Important" and "Very Important" were collapsed into one category (coded "1") to signify those
    who seem to be significantly concerned about the issue of global warming, and the responses
    "Somewhat Important," "Not Too Important," and "Not At All Important" were combined into another
    category (coded "2").</li>
   <li>The original race variable used in the survey has seven categories and there is a modified
    race variable called "RACENET" that collapses the three original 'Hispanic' categories into one,
    thus preserving five categories. This is useful not just because there are fewer categories to
    analyze, but also because when the number of observations in a category is very small (generally
    less than 30), it is difficult to decide whether the observed aggregate differences between
    categories are "real" or "statistically significant" differences. We have collapsed the data in
    two different ways. First, we constructed a race variable with four categories: "White;"
    "Black;" "Hispanic;" and "Other" by combining the "Asian" respondents (only a total of 10) and
    the "Other" respondents. The <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17632.htm">new variable is called
     "RACE4"</a>. We also created a simple two category race variable by preserving the
    "White" category and combining the other categories into one that we have labeled "Non-white."
    This <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17633.htm">new
     variable is called "RACE2."</a></li>
   <li>We have also created a new variable called "KIDSORGRANDKIDS" that combines those who have
    either children (Q915) or grandchildren (Q35), or both, to compare against those who have
    neither children nor grandchildren under age 18.</li>

  </ul>

 </section>


 <section id="a04">
  <title>Application</title>
  <p>In this module, we will examine some of the factors that may be associated with the level of
   concern that an individual respondent has with the environment in general and with global warming
   in particular. Specifically, we will look at some demographic variables including party ID,
   education, religiosity, being a parent or grandparent, race, and gender.</p>

  <p>
   <strong>Political Party and Attitudes about Environment and Global Warming</strong>
  </p>
  <p>Looking specifically at the <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17628.htm">issue of global
    warming</a>, what percentage of respondents rate the issue of global warming as either
   extremely important or very important? Because combining or collapsing categories is a useful way
   of simplifying our data for the purposes of future analyses, recall that we have created a
   recoded version of this variable called <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17629.htm">GWIMPORTANCE</a>. What percentage of respondents feel the issue of global warming is less
   important?</p>
  <p>From media coverage, we know that the issues of climate change and global warming have become
   politicized in the United States. Therefore, it is no surprise to see the large differences
   between Republicans and Democrats with regard to their feelings about environmental issues and
   global warming. However, how do independents feel about these issues? Examine the <sda-link
 url="/cgi-bin/bob-ia/olcsda?resc_id=17630.htm">crosstab of our global
    warming variable by political party</a>. Do respondents who identify as "Independent"
   tend to look more like Democrats or Republicans when considering global warming?</p>

  <p>
   <strong>Demographic Characteristics and Concerns about Global Warming</strong>
  </p>
  <p>In addition to political party identification, there are likely to be other demographic factors
   that are also associated with these attitudes. Consider the potential relationship between gender
   and concern about global warming and <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17631.htm">look at the results of
    the crosstab</a>. Does the observed difference between males and females in level of
   concern about global warming appear to be statistically significant?</p>
  <p>It is also possible that the respondent's racial identification may be associated with level of
   concern about global warming. Consider the results from the following two crosstabs of <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17634.htm"> concern about global
    warming by RACE4</a> and then by <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17635.htm">RACE2</a>. Which
   racial group appears to have the least concern with global warming? Which of these two race
   variables would you use for this analysis and why?</p>
  <p>Education is another demographic characteristic that is often related to individuals' attitudes
   or opinions. As with race, the original survey has two different education variables, one with
   six categories, and the second with only three categories. From other research, we expect that
   those with higher levels of education are generally more liberal in their worldview than those
   with less education. Look at the two different crosstabs of <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17637.htm"> global warming concern
    by the three-category variable (EDUBREAK)</a> and then <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17636.htm">by the six-category
    education variable (q909)</a> Considering both tables, is there evidence to support the
   notion that those with more education are more likely to be more concerned with global warming
   than those with less education?</p>
  <p>The age of the respondent could also be important. In general, younger respondents are thought
   to hold more liberal positions on issues. Look at the <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17638.htm">crosstab of global
    warming concern by age</a> (age groupings created in original survey). Which age group
   seems most concerned about global warming? Which age group seems least concerned?</p>
  <p>Parents and grandparents often are more concerned about the welfare of their children or
   grandchildren than for their own welfare. As a result, whether or not the respondent has children
   or grandchildren under the age of 18 might also be associated with concern about global warming.
   Examine two separate crosstabs using our global warming variable <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17639.htm">first by whether or not
    the respondent has kids under the age of 18</a> and then <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17640.htm"> by whether or not the
    respondent has grandchildren under the age of 16</a>. Does there seem to be a significant
   difference in level of concern about global warming between those who have children or
   grandchildren and those who do not?</p>
  <p>It is possible that there will be a difference in the level of concern of these parents or
   grandparents based upon how far in the future they believe that global warming will be a problem.
   For those who think that global warming is already a problem, it is possible that having children
   or grandchildren will have no effect upon the respondent's level of concern. However, for those
   who see the problem as being at least 20 years in the future, we might see a difference in
   concern based on parent/grandparent status. In the original survey, respondents were asked "About
   how many years from now do you think global warming will become a serious problem?" and the
   responses ranged from 1-9999 (Q24). We can limit our analysis to only the respondents who feel
   that global warming is at least 20 years from being a serious problem. We do this using the
   selection filter function in the SDA frequencies/crosstabs program. The specifics are noted
   below.</p>
  <p>Look at the <a href="http://www.icpsr.umich.edu/files/OLC/sda/member/globalwarmingconcern/17642.htm">crosstab of concern about global warming by having children or grandchildren under the age of
    18</a> only for those respondents who believe that the serious impact of global warming
   is at least 20 years away (using selection filter, "Q24 (20-9999)"). Are parents/grandparents
   more concerned about the impending threat of global warming?</p>
 </section>

 <section id="a05">
  <title>Interpretation &amp; Summary</title>
  <p>Think about your answers to the application questions before you click through to the
   interpretation guide for help in answering them.</p>
  <questions>
   <p>
    <strong>Political Party and Attitudes about Environment and Global Warming</strong>
   </p>
   <p>What percentage of respondents rate the issue of global warming as either extremely important
    or very important? What percentage of respondents feel the issue of global warming is less
    important?</p>
   <p>Do respondents who identify their political party preference as 'Independent' tend to look
    more like the Democrats or Republicans when considering environmental issues?</p>
   <p>
    <strong>Demographic Characteristics and Concerns about Global Warming</strong>
   </p>
   <p>Does it appear that females are more concerned about global warming than males?</p>
   <p>Which racial group appears to have the least concern with global warming?</p>
   <p>Is there evidence to support the notion that those with more education are more concerned
    about global warming than those with less education? </p>
   <p>Which age group seems most concerned about global warming? Which age group seems least
    concerned?</p>
   <p>Are parents or grandparents more concerned about global warming than those who do not have a
    child or grandchild under age 18? Is this still true if we consider only the respondents who
    feel that global warming is a problem that is at least 20 years in the future?</p>

  </questions>

  <answers>
   <p>Things to think about in interpreting the results:</p>
   <ul>
   <li>It is important to look at the amount of missing data in each relationship and think about the
    ways in which that might affect the generalizability of the results. In the case of this
    particular dataset it is also important to keep in mind that the survey was based on a
    non-random sample. As a result the respondents may not be representative of the entire US
    population.</li>
   <li>The numbers in each cell of the crosstabulation tables show the percentage of people who fall
    into the overlapping categories, followed by the actual number of people that represents this
    sample. The coloring in the tables demonstrates how the observed number in a cell compares to
    the expected number if there were no association between the two variables. The darker the
    coloring, the more likely it is that the observed difference is a "real" difference that would
    be observed in the population of interest and not just in the sample. The accompanying bar
    charts display the patterns visually as well.</li>
   <li>The use of column percentages, as shown in these tables, allows for the comparison of answers
    to the "outcome" of interest across values of the grouping variable. For example, if we consider
    the potential association of age and level about global warming in a crosstab, we see that, of
    the respondents who are 40-49 years old, 54.1% feel that global warming is extremely or very
    important to them personally, compared to only 42.2% of the 18-29 year old respondents.</li>
   <li>Weights (mathematical formulas) are often used to adjust the sample proportions, usually by
    race, sex, or age, to more closely match those of the general population. The analyses used in
    this Guide did not use any weights, which may reduce the generalizability of the findings, but
    the resulting tables are accurate descriptions of the relationships found between these
    variables among these respondents.</li>
   </ul>

   <p>Reading the results:</p>
   <ul>
   <li>Almost half of the respondents (48.7%) say that the issue of global warming is either
    extremely or very important to them personally.</li>

   <li>Independents are much closer to Democrats than Republicans on the issue of global warming. The
    difference between Republicans and Independents is about 24% whereas the difference between
    Democrats and Independents is about 9%.</li>

   <li>It does appear that females are more concerned about global warming than males. There is about
    a 10% difference between the two groups.</li>

   <li>The two crosstabs involving the two recoded race variables and concern about global warming
    yield fairly similar results, especially if our concern is simply with differences between
    whites and nonwhites. If we want more nuanced information, then we would want to preserve more
    categories in the race variable, possibly choosing the original race variable with seven
    categories. Once again, the reason we may choose to reduce the number of categories/responses in
    a variable is for the purpose of analysis and the statistical problem that is created by having
    relatively small numbers in a column, row, or cell. Thus, use race2, if you want to compare
    whites to nonwhites and race4 if you want to be able to talk about more racial groups. Using
    either variable, it is clear from these tables that whites are less concerned about global
    warming than other racial groups.</li>

   <li>The simple answer is 'no,' in this case there is no support for the idea that higher levels of
    education lead to greater concern about global warming. If we look at the first analysis we see
    that it appears that respondents with more education are less concerned about global warming
    than those with less education as we read across the "extremely or very important" row. However,
    when we look at the second analysis with six levels of education, we see that combining the
    "postgraduate" group with the "college graduate" and "some college" group does not make sense
    because the postgraduates (57.9% either extremely or very) appear much more concerned about
    global warming than the two groups just mentioned (44.4% and 41.8% respectively are either
    extremely or very concerned). Still, there is no evidence of a clear pattern that shows those
    with more education are more concerned about global warming.</li>

   <li>The age group that appears to be most concerned about global warming are the 50-64 year olds
    (54.7% "extremely or very") while those 65 and older seem to be the least concerned (40.6%
    "extremely or very"). Note that respondents in the 18-29 age group are very similar to the
    oldest age group in their aggregate level of concern about global warming.</li>

   <li>You will note that there are very slight differences in the level of concern about global
    warming between those who have children under age 18 and those who do not and between those who
    have grandchildren under age 18 and those who do not. However, these differences are small and
    are not statistically significant (note the pale coloring in the cells). This means the observed
    differences are too small for us to be able to make a claim that being a parent or a grandparent
    is likely to make any difference in the respondent's level of concern about global warming.</li>

   <li>When we filter those respondents who believe that the serious impact of global warming is at
    least 20 years away, we can see that parents/grandparents are 5% more likely than those without
    children or grandchildren to feel that global warming is extremely or very important. However,
    this difference is not statistically significant (again note the pale coloring in the
    cells).</li>
   </ul>


   <p>
    <strong>Summary</strong>
   </p>

   <p>The goal of this module was to explore some of the factors that might be associated with a
    respondent's level of concern regarding the environment and global warming. Not surprisingly,
    there are significant differences between Republicans and Democrats when it comes to their
    outlooks on the environment and their levels of concern about global warming. Some demographic
    characteristics, such as gender and race, are also associated with level of concern about global
    warming. Age and education also seem to be associated with level of concern about global
    warming, but not in the fairly straight-forward way that we may have expected. Instead, the
    relationship may be better described as curvilinear. Another demographic characteristic, being a
    parent or grandparent, does not seem to have any association with level of concern about global
    warming.</p>
   <p>Future research might consider the relationship between attitudes about a variety of
    environmental issues and the respondents' concern about global warming. Additionally,
    researchers may want to study the effects of additional knowledge about environmental issues and
    concern for the environment including global warming.</p>
  </answers>
 </section>

 <section id="a06">
  <title>Bibliography</title>
  <id>359</id>
 </section>

</template>
