I am interested in global climate change, with special emphasis on the role of aerosol particles and clouds on climate. This include the interaction between aerosol and clouds with the Amazonian ecosystem. The radiation balance and the hydrological cycle influences strongly the carbon balance of the forest. Other interests in the Amazonian ecosystem includes the long range transport of Sahara dust and nutrient cycling.
I am also interested in urban air pollution, specially in mega cities, and strategies to reduce vehicular and industrial emissions in urban areas.