The 1979 Charney report raised concerns about an impending climate crisis long before we could directly evidence it. In response, the scientific community stepped up its research efforts, and has been conducting regular scientific assessments to build a consensus view, and send a strong message to policy makers to spur them into action.
The problem is that 40 years of these efforts, however
well-intentioned, have not had any impact on the carbon course of
humanity. Since the middle of the 19th century, CO₂ emissions from human
activities have been growing exponentially, on average by 1.65% per
year since 1850.