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An Attack on Science? Media Use, Trust in
Scientists, and Perceptions of Global Warming
    Jay Hmielowski, Lauren Feldman, Teresa Myers,
      Anthony Leiserowitz, and Edward Maibach
General Research Questions




How does attention to various media outlets relate to (a) trust in
scientists and (b) beliefs about whether global warming is occurring?
Does trust in scientists serve as a mediating variable between media
use and beliefs about global warming?
Conservative Media
          -Are more likely to cover
          climate contrarians and
          conservative think tanks

          -Use of conservative
          media shown to decrease
          belief that global warming
          is happening
Non-Conservative Media
-Less likely to give voice
to climate skeptics and
tends to reflect the
scientific consensus

-Use of non-conservative
media shown to increase
belief that global warming
is happening
Trust in Scientists
       -Public possess limited
       knowledge about global warming

       -Rely on heuristics when
       reporting attitudes, opinions, etc.

       -Trust in scientists has been
       shown to be a
       heuristic, especially for scientific
       issues (e.g., global warming)

       -Media have been shown to
       influence public trust in scientists
Data & Analysis
• Panel data from the Fall 2008 and Spring
  2011
  – 1,036 participants completed both waves
• Two types of analysis
  – Fixed effects regression
  – Lagged regression
Fixed Effects


                               -
Conservative
 Media Use
               -                        -
                                            +    Global
                            Trust in
                                                Warming is
                           Scientists
                                                Happening
   Non-            +                    +
Conservative
 Media Use
                              +
Lag Model A

Time 1                                    Time 2


                             -
Conservative
 Media Use
                -                     -
                                          +         Global
                          Trust in
                                                   Warming is
                         Scientists
                                                   Happening
   Non-             +                 +
Conservative
 Media Use
                            +
Lag Model B

Time 1                                      Time 2


                           -
Conservative
 Media Use
               -                        -
                                            +         Global
                        Trust in
                                                     Warming is
                       Scientists
                                                     Happening
   Non-            +                    +
Conservative
 Media Use
                          +
Conclusion
• Media, trust and beliefs
  – Conservative media- decreases trust in
    scientists and belief that global warming is
    happening
  – Non-conservative media- increases trust in
    scientists and belief that global warming is
    happening
• Trust serves as a mediating variable
• Over time effect- T1 media use influences
  T2 beliefs

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Virtual conf slide show

  • 1. An Attack on Science? Media Use, Trust in Scientists, and Perceptions of Global Warming Jay Hmielowski, Lauren Feldman, Teresa Myers, Anthony Leiserowitz, and Edward Maibach
  • 2. General Research Questions How does attention to various media outlets relate to (a) trust in scientists and (b) beliefs about whether global warming is occurring? Does trust in scientists serve as a mediating variable between media use and beliefs about global warming?
  • 3. Conservative Media -Are more likely to cover climate contrarians and conservative think tanks -Use of conservative media shown to decrease belief that global warming is happening
  • 4. Non-Conservative Media -Less likely to give voice to climate skeptics and tends to reflect the scientific consensus -Use of non-conservative media shown to increase belief that global warming is happening
  • 5. Trust in Scientists -Public possess limited knowledge about global warming -Rely on heuristics when reporting attitudes, opinions, etc. -Trust in scientists has been shown to be a heuristic, especially for scientific issues (e.g., global warming) -Media have been shown to influence public trust in scientists
  • 6. Data & Analysis • Panel data from the Fall 2008 and Spring 2011 – 1,036 participants completed both waves • Two types of analysis – Fixed effects regression – Lagged regression
  • 7. Fixed Effects - Conservative Media Use - - + Global Trust in Warming is Scientists Happening Non- + + Conservative Media Use +
  • 8. Lag Model A Time 1 Time 2 - Conservative Media Use - - + Global Trust in Warming is Scientists Happening Non- + + Conservative Media Use +
  • 9. Lag Model B Time 1 Time 2 - Conservative Media Use - - + Global Trust in Warming is Scientists Happening Non- + + Conservative Media Use +
  • 10. Conclusion • Media, trust and beliefs – Conservative media- decreases trust in scientists and belief that global warming is happening – Non-conservative media- increases trust in scientists and belief that global warming is happening • Trust serves as a mediating variable • Over time effect- T1 media use influences T2 beliefs