Are we still able to be sensitive to the warning signs around us? The sound installation «Chaud Change» calls walkers to think about environmental issues in a sensitive way. As part of this installation, two sound naps will be proposed to invite to a poetic journey in different soundscapes crossed by the artist Hugues Germain; from the Sahel to the salt marshes, from Taiwan to the Stang-Alar Valley. An ode to large spaces and small sounds, conducive to a moment of collective laziness, which invites the spectator to discover the new headquarters of the Botanical Conservatory.