The President made clear yesterday that we can't attribute any one single weather event to climate change.

WHITEHOUSE: The White House

No specific storm or weather event can be tied to climate change, but the fact is we have seen more severe storms.

WHITEHOUSE: Press Briefing

According to Prof Roger Pielke Jnr, from the University of Colorado, there are big dangers in claiming that one event, be it US weather records or wildfires in Australia, are clear evidence of human-induced climate change.

BBC: Science & Environment