Denni davka Carbon Brief
Looking further back to SPMs from earlier IPCC assessment reports, it is interesting to see how the language around human influence has evolved:
First assessment report (1990): By increasing their concentrations, and by adding new greenhouse gases like chlorofluorocarbons (CFCs), humankind is capable of raising the global-average annual-mean surface-air temperature.”
Second assessment report (1995): “The balance of evidence suggests a discernible human influence on global climate.”
Third assessment report (2001): “Most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations.”
Fourth assessment report (2007): “Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.”
Fifth assessment report (2013): “It is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20th century.”
Sixth assessment report (2021): “It is unequivocal that human influence has warmed the atmosphere, ocean and land.”
IPCC: How the AR6 WG1 summary for policymakers compares to its predecessor | Carbon Brief https://www.carbonbrief.org/ipcc-how-the-ar6-wg1-summary-for-policymakers-compares-to-its-predecessor