Hi, I am worried about climate change, which is why I worry about Greta. It occured to me that her tactics are effectively just Bob Brown's Queensland protest scaled up to the UN. Did that work in Queensland? On the contrary, it lost the left the unlosable election. The problem at its core for this sort of activism is that in democracies you need to convince large swathes of the people. People don't change their minds because you talk down to and berate them. That's not how human nature works. Confronted with insufferable nagging by elite-supported public figures, people tend to embolden, not disarm. What's your view?