In its 6th Assessment Report, the IPCC used more confident language than in any of its previous three studies

share of "confidence level" phrases that are:

"Emphatic" phrases include: virtually certain, very high confidence, extremely likely, very likely, very/exceptionally/extremely unlikely, high confidence

"Not emphatic" phrases include: medium confidence, low confidence, likely, about as likely as not, unlikely

Chart: Elijah Wolfson for TIME