Whether Knysna was (partly) attributable to climate change or not I do not know, I do know that *this* article is absolutely useless in determining that as I have never before seen so extreme a case of cherry-picking studies and misrepresenting what they mean. It took all of thirty seconds to find that the frequently claimed hiatus has *never* happened and no serious scientist in the world accepts that as a fact. Yet those who, like Ivo, think that reality can be coerced to comply with their economic ideas would rather pretend that science says something other than what it actually says than admit the possibility of a problem that their version of economics cannot address. 
There has been no pause, and the data that is claimed to show one is being misrepresented. 
https://www.scientificamerican.com/article/has-global-warming-paused/

That's just the first example. Manufactured doubt has been a tactic since lead in fuel was identified as dangerous. It's never been anything but a scam.