I have said this many times but will say it again. Do not rely on internet sources go out and talk to professors, subscribe for scientific journals that publish these studies etc, etc. You can not seriously rely on google or a right or left wing leaning person for your information. Try the magazine skeptic and order a back issue of their climate change issue.
As for this article, it's not worth a grain of salt. It's typical 'we can only nit pick here and there to prove our theory without have any real evidence besides these things we refute' Also without any citation on the study he is refuting or quoting. Context much?