Also, paying more or less for the development effort has environmental impacts from the resulting economic activity - slower/harder development makes the softwa

Also, paying more or less for the development effort has environmental impacts from the resulting economic activity - slower/harder development makes the software cost more, the downside from co2 foorprint pov is that whoever did it buys more plane tickets to holidays, second cars, etc. (Depends on the domain of the app if it would have been better to finish sooner or later from environmental pov)