One thing to do is to NOT read the WSJ opinion page. Don't be seduced by this article's cheerleading for the skeptics.
As for this opinion piece, another commentator has pointed out that the senator in question, Steve Fielding (http://en.wikipedia.org/wiki/Steve_Fielding) is a known skeptic (http://news.ycombinator.com/item?id=676593) but the article makes no mention of this. Instead it portrays him as a fence-sitting politician who has been let down by the Obama administration so he has "decided" to vote against his country's climate-change legislation. His decision was made well before his stunt of asking the Obama administration for advice.