Venue & accommodation
The conference will be held at IFSTTAR, in the east of Paris.
In order to make your trip more fluid we recommend the hotels near the RER A stations of the Gare de Lyon or "Nation ".
If you want to stay next to the Co2sto conférence site, we recommend the hotel in Champs-sur-Marne, Hotel Ibis Marne-la-Vallée fields bookable via their reservation site Accorhotels.
But you can also use the usual search engines :