Interesting observation from the Prime Minister near the conclusion of this news conference today.

“I’ve never been at a summit where leaders seemed to more deeply feel the necessity of common action and common purpose. Why is that? Some of it may be some of the personalities around the table and the generational change that’s taken place in the G8 over the past few years.”

There is perhaps something to this.

Mr. Harper succeeded Paul Martin in 2006. Since then, in roughly this order, Nicolas Sarkozy has replaced Jacques Chirac, Dmitry Medvedev has filled the spot of Vladimir Putin, Silvio Berlusconi has returned to power in Italy, Barack Obama has succeeded George W. Bush, David Cameron has succeeded Gordon Brown and Naoto Kan has replaced Yukio Hatoyama. Of the eight leaders who attended the Prime Minister’s first G8, at St. Petersburg in 2006, only Mr. Harper and Germany’s Angela Merkel remain. And of the new arrivals, five—Harper, Obama, Cameron, Sarkozy and Medvedev—are 55 years old or younger.