Hon GRANT ROBERTSON (Minister of Finance): Oh, very good—thank you, Mr Speaker. I think it's instructive that in a debate about the 40 years ahead for the New Zealand economy and New Zealand society, the Opposition finance spokesperson couldn't utter the words "climate change"—could not utter the words "climate change"—didn't devote anything in her speech to the biggest challenge facing the New Zealand economy for 40 years ahead. 