When I discuss these and sometimes any issue really with engineers or scientists, I try to find technical research papers with null hypothesizes and methodology.
My point being for technical people like engineers, you aren't convincing a lot of people with light fluffy pieces without links to hard data, in fact you get them even more entrenched in their current way of thinking because they think you don't have real scientific evidence.
I've found in personal experience, technical people are far more open minded then the general population, but they tolerate far less bullshit.