Yale Program on Climate Change Communication

Reading notes

• This report is based only on registered voters.

• References to Republicans and Democrats throughout include respondents who initially identify as either a Republican or Democrat as well as those who do not initially identify as Republicans or Democrats but who say they “lean” toward one party or the other in a follow-up question. The category “Independents” does not include any of these “leaners.”

• In all tables and charts, bases specified are unweighted, but percentages are weighted.

• Weighted percentages of each of the parties discussed in this report:

• Democrats (total) including leaners: 46%
• Liberal Democrats including leaners: 23%
• Moderate/Conservative Democrats including leaners: 22%
• Independents excluding leaners: 9%
• Republicans (total) including leaners: 41%
• Liberal/Moderate Republicans including leaners: 14%
• Conservative Republicans including leaners: 27%
• No party/Not interested in politics/Refused: 5% (included in results reported for “All Registered Voters”)

• In the appendix tables, note that: — = 0; * = >0 but <0.5.

• For tabulation purposes, percentage points are rounded off to the nearest whole number. As a result, percentages in a given chart may total slightly higher or lower than 100%. Summed response categories (e.g., “strongly support” + “somewhat support”) are rounded after sums are calculated (e.g., 1.3% + 1.3% = 2.6%, which, after rounding = 3%).