The Torygraph is known for printing a lot of shoddy data-illiterate denialist articles (Christopher Booker is one of the main culprits), so I'd take this article as if it were on Fox or even Breitbart and fact check the s[now] out of it, if you're inclined to believe it.
>"Bob Ward, of the Grantham Institute on Climate Change and the Environment, added: “Peter Wadhams has made predictions of the imminent disappearance of summer Arctic sea ice which have not been fulfilled, but the evidence still shows a rapid decline."
One guy missing a prediction isn't reason to dismiss the entire line of thought. All the evidence in the article shows the trend pretty clearly. Wadhams being aggressive in his prediction is not the story.
To be fair, it's a pretty weak argument to claim that things are fine because a few loud individuals said something outlandish, and the media gobbled it up for hype.