The seats are there whether they use it or not. The ecological impact is the same regardless. (Actually installing it without ever allowing its use might be wor

The seats are there whether they use it or not. The ecological impact is the same regardless. (Actually installing it without ever allowing its use might be worst of all so maybe you could say the ecological impact is worse by this approach than all others.) The SASS product is more akin to paying for ongoing use of energy. The more it's used the more an impact there is.