f11f2692_limate_Science___ThinkProgress__One_Liner
[0] 69 [Skeptic Argument] “Volcanoes emit more CO2 than humans” [Paragraph] Volcanoes emit around 0.3 billion tonnes of CO2 per year. This is about 1% of human CO2 emissions which is around 29 billion tonnes per year. [One Liner] 
Humans emit 100 times more CO2 than volcanoes.
99 One-Liners Rebutting Denier Talking Points — With Links To The Full Climate Science | ThinkProgress
One Liner