How accurate were Al Gore's CO2 predictions in 'An Inconvenient Truth'?

Al Gore's CO2 predictions in 'An Inconvenient Truth' contained solid science but weren't entirely accurate. When the film was made, CO2 levels were at 380 parts per million, and Gore predicted they would reach approximately 600 parts per million within 50 years. Currently, levels have risen to 427 parts per million, showing a significant increase but not at the pace Gore projected. According to Columbia University, CO2 levels will likely reach Gore's predicted threshold by the end of the century rather than within the 50-year timeframe he suggested. While his core message about rising CO2 levels was correct, his timeline was approximately 50 years too early.