My solution is too complicated to take into account all the environmental considerations asked, what should I do?

Try to identify the main environmental benefit of your solution and communicate the calculations for that one. If other considerations could be added but are too complicated for the sake of the tool, it is very important to mention those in the comments. Keep in mind that our SEI tool does not represent a complete Life Cycle Assessment of your solution. It is a tool created with the aim of providing some quantitative estimations of the environmental benefits of each solution compared to the Mainstream Alternative.