Public opinion on global warming

Public opinion on climate change is the aggregate of attitudes or beliefs held by the adult population concerning the science, economics, and politics of global warming. It is affected by media coverage of climate change.

A 2007–2008 Gallup Poll surveyed individuals in 128 countries. This poll queried whether the respondent knew of global warming and, for those who were aware of the issue, whether or not they thought it was human-induced. Over a third of the world's population were unaware of global warming, with developing countries less aware than developed, and Africa the least aware. Of those aware, residents of Latin America and developed countries in Asia led the belief that climate change is a result of human activities while Africa, parts of Asia and the Middle East, and a few countries from the former Soviet Union led in the opposite. Opinion within the United Kingdom was divided. Opinions in the United States vary intensely enough to be considered a culture war. A Gallup poll in 2014 concluded that 51 percent of Americans were a little or not at all worried about climate change, 24 percent a great deal and 25 percent a fair amount.

Adults in Asia, with the exception of those in developed countries, are the least likely to perceive global warming as a threat. In the western world, individuals are the most likely to be aware and perceive it as a very or somewhat serious threat to themselves and their families; although Europeans are more concerned about climate change than those in the United States. However, the public in Africa, where individuals are the most vulnerable to global warming while producing the least carbon dioxide, is the least aware – which translates into a low perception that it is a threat.

These variations pose a challenge to policymakers, as different countries travel down different paths, making an agreement over an appropriate response difficult. While Africa may be the most vulnerable and produce the least amount of greenhouse gases, they are the most ambivalent. The top five emitters (China, the United States, India, Russia, and Japan), who together emit half the world's greenhouse gases, vary in both awareness and concern. The United States, Russia, and Japan are the most aware at over 85% of the population. Conversely, only two-thirds of people in China and one-third in India are aware. Japan expresses the greatest concern, which translates into support for environmental policies. People in China, Russia, and the United States, while varying in awareness, have expressed a similar proportion of aware individuals concerned. Similarly, those aware in India are likely to be concerned, but India faces challenges spreading this concern to the remaining population as its energy needs increase over the next decade.

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