temps (durée) (1) technologie (1) responsabilité (1) pollution (1) atmosphère (1) particule (1) propriété (1) art (1) marché (1) lumière (1) air (1) public (1) Ownership (1) Art (1) Forms (1) Art (1) Emissions trading (1) Time (1) Technology (1) Series (1) Selling (1) Responsibility (1) Respiration (1) Pollution (1) Human beings (1) Light (1) Impact (1) Comprehension (1) Climatic changes (1) Awareness (1)