Launch of The New Paris Observatory Atmospheric Generali Balloon - Cocktail Party

PARIS, FRANCE - APRIL 18: (L-R) Jerome Giacomoni; Claude Tendil , Anne Hidalgo, Jean-Felix Bernard and Matthieu Gobbi attend the launch of the new Paris Observatory Atmospheric Generali balloon, at Parc Andre Citroen on April 18, 2013 in Paris, France. The balloon will monitor air pollution which it will then display via a LED light device. (Photo by Marc Piasecki/WireImage)