There is a humour here that is quite infectious and McEwan must have had fun writing this.
An aging scientist who's marriage and career have seen better days finds himself involved with an organisation that is connected with global warming. As he struggles to sort out his own life the prospect of Michael Beard ever actually doing anything for the planet seems a remote one.
But things have a funny habit of falling into place for Beard and as the second half of the books looms large so does the prospect that the main character can save himself and perhaps do some good for the planet as well.
Review will come on completion soon...