 Climate change scenarios are based on the trajectory of greenhouse gas emissions into the future, which are then used to create computer models to predict how the Earth's climate will respond. However, these models can only provide an average of all possible outcomes, when in reality there may be multiple different outcomes depending on the actions taken by humans. This means that even if we achieve net zero emissions, the climate could still experience drastic changes due to other factors like low climate sensitivity or solar climate intervention. To account for this, climate change scenarios should take into consideration the possibility of unexpected social surprises, such as the success of net zero emissions, low climate sensitivity, or solar climate intervention. This article was authored by Patrick W. Keyes.