Intergovernmental Panel on Climate Change
“It is unequivocal that the increase of CO2, methane, and nitrous oxide in the atmosphere over the industrial era is the result of human activities and that human influence is the principal driver of many changes observed across the atmosphere, ocean, cryosphere, and biosphere.
I haven't found this yet. Too bad you rarely ever verify the material you link.
“Since systematic scientific assessments began in the 1970s, the influence of human activity on the warming of the climate system has evolved from theory to established fact.”13-17
This I found in the WG1 Full Report, reference 15. In full context:
Understanding of the fundamental features of the climate system is robust and well established.
Scientists in the 19th-century identified the major natural factors influencing the climate system. They also
hypothesized the potential for anthropogenic climate change due to carbon dioxide (CO2) emitted by fossil
fuel combustion. The principal natural drivers of climate change, including changes in incoming solar
radiation, volcanic activity, orbital cycles, and changes in global biogeochemical cycles, have been studied
systematically since the early 20th century. Other major anthropogenic drivers, such as atmospheric aerosols
(fine solid particles or liquid droplets), land-use change and non-CO2 greenhouse gases, were identified by
the 1970s. Since systematic scientific assessments began in the 1970s, the influence of human activity on the
warming of the climate system has evolved from theory to established fact. Past projections of global surface
temperature and the pattern of warming are broadly consistent with subsequent observations (limited
evidence, high agreement), especially when accounting for the difference in radiative forcing scenarios used
for making projections and the radiative forcings that actually occurred.
All this does is correctly acknowledge we have an effect. Please note. It says it isn't ready. Have you seen a fully released final version yet? I haven't looked yet to see if its available, but they also caution people not to quote it.
Final Government Distribution Chapter 1 IPCC AR6 WGI
Do Not Cite, Quote or Distribute
You really should verify any information you link when it comes from bloggers. They often misconstrue or flat out lie.
I will post again when I do or do not find the first sentence, but so far it appears to be made up by the bloggers. maybe you care to find it?