CB_6.2_v4: -
![](https://changingclimate.ca/site/assets/uploads/sites/3/2021/05/CB_6.2_v4-1024x614.png)
Illustration of ballooning uncertainties along a “science-first” causal impact chain. The level of uncertainty increases as one moves along the impact chain (from left to right), leading to a high level of uncertainty in the cost and benefit estimates at the end of the chain.