f11f2692_limate_Science___ThinkProgress__One_Liner
[0] 13 [Skeptic Argument] “Climate sensitivity is low” [Paragraph] Climate sensitivity can be calculated empirically by comparing past temperature change to natural forcings at the time. Various periods of Earth’s past have been examined in this manner and find broad agreement of a climate sensitivity of around 3°C. [One Liner] 
Net positive feedback is confirmed by many different lines of evidence.
99 One-Liners Rebutting Denier Talking Points — With Links To The Full Climate Science | ThinkProgress
One Liner