John Rentoulis a British journalist who has been the chief political commentator for The Independent on Sunday since February 2004, and is seen as a "Labour-leaning journalist"... (wikipedia)
But that's not to say it's not sincere as well.
He is very closely associated with Bush in the public mind, and George Bush, rightly or wrongly, is fantastically unpopular in Britain. And so to get rid of him would be like getting rid of the millstone round his neck.
The sort of people who are impressed with warm words over Africa are precisely the same group of people who hate Tony Blair so much because of the war.
Not having to face the electorate again he has made saving the planet from climate change one of his legacy projects for his third term.