Laurent Fabius, who has presided over an international climate conference the past two weeks, has gotten rave reviews for keeping things on track and roughly on schedule. Even if the talks will now go over time, so that a deal may come Saturday morning instead of Friday, his appeal hasn’t diminished. So this Tumblr, “Fabius u is Fab,” is an ode to the “silver-haired and silver-tongued” French foreign minister holding the Paris talks together.