A new Bloomberg News National Poll included (PDF) questions about whether climate change is a threat, whether it is worth increasing energy costs to prevent, and whether scientists are to be trusted about climate change.

Asked, "Do you believe climate change is a major threat, a minor threat, or no real threat," 46% of respondents said that it is a major threat, 27% said that it is a minor threat, 24% said that it is no real threat, and 3% were not sure.

Asked, "Are you willing or unwilling to pay more for energy if air pollution from carbon emissions could be reduced," 62% of respondents said that they were willing, 33% said that they are unwilling, and 5% were not sure.

Asked "Which of the following better reflects your view on climate change," 48% of respondents preferred "I trust what scientists say when they warn about climate change," 43% preferred "I think scientists manipulate their findings for political reasons," and 9% were not sure.

The survey was conducted June 6-9, 2014, with 1005 U.S. adults ages 18 or older, contacted via randomly selectd landline and cell phone telephone numbers; responses were weighted by sex, age, and race to reflect the general population. The margin of error for the whole sample was +/- 3.1%.