The article you cite doesn't actually provide any data for their claims, and only links to another article on the same site which, again, doesn't actually provide any data. In fact, even checking the articles in their "Research" section, there is no information about the actual data provided, and all links I've seen were only to other articles on the same site. It leads me to believe that the people behind the site have a specific agenda they're pushing, rather than "...presenting the facts as best they can be determined, giving voice (without fear or favor) to worthy research, sound ideas, and responsible arguments..." as they claim in the About Us section.