Matthew Edwards can also be seen in action within this comment section: http://www.mnn.com/earth-matters/politics/blogs/wyoming-lawmakers-want-put-kibosh-sale-clean-energy. He makes the same points and it is clearly the same person.
However, at the Mother Earth News site he commented using his discus ID. This means you can see all 1615 of the comments he’s made with that profile: https://disqus.com/by/disqus_N40uatrSwT/.
He comments a lot at Infowars. Representative comment: “Donald Trump got more fat women to walk in one day than Micheal Obama did in 8 years. He already has done a lot for healthcare.”