Climate change and its perceived influence on the mankind is a very controversial subject, and today most of people's suffering from poverty and misgovernment has nothing to do with it. Advancing your own pet theories using a real-life tragedy as a prop is a bad taste.
It wasn't necessary in the argument, and yes, he was pushing his theories, but it may not have been so completely insulting as: "climate changed caused an earthquake!"
The fact that a lot of people today suffer from poverty and misgovernment is indeed not entirely due to climate change (although there is dutch disease/resource curse: http://en.wikipedia.org/wiki/Resource_curse)
However it is not hard to realize that those suffering right now will suffer even more were climate change effects as severe as some scientist predict, is it?