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Public Understanding 
of Science 
Lecture 2 
Zeynep Altinay, Paige Brown
Public engagement in science 
 Effective science communication requires initiatives that 
promote 
 Dialogue 
 Mutual trust 
 Relationships 
 Public participation across social settings and media 
platforms
Deficit Model of Science Communication 
 False premise that deficits in public knowledge are the 
central culprit of societal conflict / public mistrust of 
science. This has led to initiatives to educate the public 
about technical details in science. 
“Once citizens are brought up to speed on the science, they will be more 
likely to judge scientific issues as scientists do and controversy will go away.” 
 Science literacy ≠ public support of science 
 A person’s existing knowledge, opinions, attitudes, values 
and ideology will shape how they interpret scientific 
information.
Implications of Deficit Model 
 Blaming journalists for poor coverage of science and 
environmental issues 
 Pointing out lack of public science literacy 
 Efforts to put out fact sheets on the scientific basis of issues 
like climate change, for example. 
 A call for “more Carl Sagans” 
“We live in a society absolutely dependent on 
science and technology and yet have cleverly 
arranged things so that almost no one 
understands science and technology. That's a 
clear prescription for disaster.” – Carl Sagan
Problems with the Deficit Model 
 “Condescending claims of ‘public ignorance’ too often serve 
to further alienate key audiences, especially in the case of 
evolutionary science, where these charges are mixed with 
atheist critiques of religion (Nisbet, 2009).” 
 Early science bloggers like PZ Myers (Pharyngula) likely feed 
public debates over evolution instead of leading to a more 
“informed” public. 
 Studies actually show that science literacy only accounts for 
small differences in how people form opinions about 
controversial areas of science (Allum et al. 2008). Stronger 
influences include ideology, partisanship, religious identity.
Jon Kudelka's cartoon sums up the frustrations from communicating climate 
change to the public. (Jon Kudelka )
Beyond the Deficit Model 
 Despite low levels of scientific literacy, the U.S. public is highly 
trusting of scientists. 
 Pew Research Center, 2009 survey: 84% of Americans agree that 
science is having a mostly positive effect on society. 
 The public holds scientists in high-esteem, on similar levels as 
military and teachers. 70% of Americans say that scientists 
“contribute a lot” to society, compared to 38% for journalists, 
23% for lawyers, 40% for clergy, 21% for business executives. 
 Scientists might use this public trust and esteem to sponsor 
dialogue, invite different perspectives and facilitate public 
participation. Communicators can help facilitate this 
participation.
Beyond the Science 
 Often, where public controversies or polarization over 
scientific issues occur, it’s because the scientific issue has 
political, economic, societal, or other value-laden 
implications. 
 We can’t separate out people’s values from their opinions 
toward scientific issues. 
 Communication on scientific issues such as climate change 
must take into account readers’ values, ideology, existing 
knowledge, attitudes, and even their social context.
Beyond the Science 
 Increasingly, science communicators are focusing on 
 What different groups / individuals want to know about 
climate change, etc. 
 Implications of science issues (climate change) for people’s 
daily lives 
 What people’s own concerns are when it comes to science-related 
issues 
 Who people want to hear from when it comes to science-related 
issue (scientists, people in their own communities, 
etc.) 
 Conveying personal relevance: tying scientific issues to 
things people already value or prioritize 
 *We will learn more about science-related value systems later 
this semester 
http://www.amjbot.org/content/96/10/1767.full.pdf+html
Framing Science 
 Frames are ‘storylines’ that 
describe how journalists 
selective cover some 
scientific issues, and how 
diverse publics perceive, 
understand and participate 
in these issues differently. 
 For example, emphasizing 
religious or moral 
dimensions of climate 
change. Or making climate 
change a matter of public 
safety / health. 
http://www.environmentmagazine.org/Archives/Ba 
ck%20Issues/March-April%202009/Nisbet-full.html
Effective Republican 
frame? 
May reinforce partisan divides 
May reinforce partisan divides; falsely balancing 
competing claims (Boykoff and Boykoff, 2004). 
A Typology of frames applicable to science-related policy debates 
http://www.amjbot.org/content/96/10/1767.full.pdf+html
Framing Science: 
Emergence of Public Health / Local Frames 
 “The public health frame stresses climate change’s 
potential to increase the incidence of infectious 
diseases, asthma, allergies, heat stroke, and other 
salient health problems, especially among the most 
vulnerable populations: the elderly and children. In the 
process, the public health frame makes climate change 
personally relevant to new audiences by connecting the 
issue to health problems that are already familiar and 
perceived as important.” 
 “The frame also shifts the geographic location of 
impacts, replacing visuals of remote Arctic regions, 
animals, and peoples with more socially proximate 
neighbors and places across local communities and 
cities. Coverage at local television news outlets and 
specialized urban media is also generated.” 
http://www.environmentmagazine.org/Archives/Ba 
ck%20Issues/March-April%202009/Nisbet-full.html
Beyond Media Frames 
 It’s important to realize that individuals in the 
“audience” also have their own applicable lay 
knowledge about science-related debates, based on 
their personal experience, culture and conventional 
wisdom. (Wynne 1992). 
 Science communication should take this knowledge, 
and people’s personal experiences, into account. 
 Framing scientific issues can be used more ethically by 
prioritizing dialogue and citizen expression. 
 Through user-centered and user-controlled digital 
media like blogs and social media, the ‘former 
audience’ is developing their own ‘frames’ or ways of 
interpreting scientific issues.
Getting Science Information 
 Significant shifts from television (still the 
primary source of information for 65 years 
or older) to online sources (which are the 
preferred media for more than half of 
those under 24 years old) 
(Pew Research Center for the 
People & the Press, 2008). 
 Those who rely on new information 
technologies for news rate higher on 
interest in science-related issues. 
 As of 2012, the Internet is now the main 
source of information for learning about 
specific scientific issues (NSF, 2012).
Getting Science Information – New Media 
 In 2010, science and technology stories composed 12% of 
the most-linked-to blog subjects in a given week; in 2009, 
that figure was 17%. On Twitter, science and technology 
made up 38% of the most-linked-to subjects in a given week 
in 2010, down from 48% in 2009.
Discussion: How do YOU think about 
environmental issues 
 Sea Level Rise 
 What do you know about it? 
 What does it mean to you? 
 Where do you get information on this issue? 
 How could this be framed in different ways? 
 How would you communicate about this issue?