Public Perceptions of Climate Change as a Human Health Risk: Surveys of the United States, Canada and Malta

International Journal of Environmental Research and Public Health

Karen Akerlof⁵  Roberto DeBono¹  Peter Berry³  Anthony Leiserowitz⁴  Connie Roser-Renouf⁵  Kaila-Lea Clarke³  Anastasia Rogaeva³  Matthew C. Nisbet²  Melinda R. Weathers⁵ 

[1] Department of Public Health, Ministry for Health, the Elderly and Community Care, Valletta, VLT 2000, Malta; E-Mail:;School of Communication, American University, Washington, DC, USA; E-Mail:;Health Canada, Ottawa, K1A 0K9, Canada; E-Mails:;Yale Project on Climate Change Communication, Yale University, New Haven, CT 06511, USA; E-Mail:;Center for Climate Change Communication, George Mason University, Fairfax, VA 22030, USA; E-Mails:

关键词: climate change;    global warming;    public health;    opinion poll;    survey;    United States;    Canada;    Malta;   

DOI  :  10.3390/ijerph7062559

来源: mdpi

【 摘 要 】

We used data from nationally representative surveys conducted in the United States, Canada and Malta between 2008 and 2009 to answer three questions: Does the public believe that climate change poses human health risks, and if so, are they seen as current or future risks? Whose health does the public think will be harmed? In what specific ways does the public believe climate change will harm human health? When asked directly about the potential impacts of climate change on health and well-being, a majority of people in all three nations said that it poses significant risks; moreover, about one third of Americans, one half of Canadians, and two-thirds of Maltese said that people are already being harmed. About a third or more of people in the United States and Canada saw themselves (United States, 32%; Canada, 67%), their family (United States, 35%; Canada, 46%), and people in their community (United States, 39%; Canada, 76%) as being vulnerable to at least moderate harm from climate change. About one third of Maltese (31%) said they were most concerned about the risk to themselves and their families. Many Canadians said that the elderly (45%) and children (33%) are at heightened risk of harm, while Americans were more likely to see people in developing countries as being at risk than people in their own nation. When prompted, large numbers of Canadians and Maltese said that climate change can cause respiratory problems (78–91%), heat-related problems (75–84%), cancer (61–90%), and infectious diseases (49–62%). Canadians also named sunburn (79%) and injuries from extreme weather events (73%), and Maltese cited allergies (84%). However, climate change appears to lack salience as a health issue in all three countries: relatively few people answered open-ended questions in a manner that indicated clear top-of-mind associations between climate change and human health risks. We recommend mounting public health communication initiatives that increase the salience of the human health consequences associated with climate change.

【 授权许可】

CC BY   
© 2007 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.