September 22, 2000: European Car Free Day, Lisbon,
Praça dos Restauradores. Measurement of vehicular pollution decrease
Ilha Bela, São Paulo, Brazil
June 8-9, 2001: Field experiments on distant forest
fire detection in North Portugal (Castanheira de Pera)
August 20, 2003: Invited talk "Optical Methods
in Environmental Protection", Suzano, São Paulo, Brazil
June 8-9, 2001: Field experiments on distant forest
fire detection in North Portugal (Castanheira de Pera)
Forest Reserve in Caraguatatuba, São Paulo, Brazil
June 8-9, 2001: Experimental fire in North Portugal
(Castanheira de Pera, project GESTOSA) 
Fixing the water pump. Suzano, São Paulo, Brazil
November 18-23, 2002: V Int. Conf. on Forest Fire
Research, Luso, Portugal 
Caminhoneiro (driver). Matão, São Paulo, Brazil
Compact lidar sensor for fire surveillance
February 15, 2001: St. Petersburg, Russia
March 29, 2008: Field experiments with diode-laser
lidar, project SIDAI 
My wife and I. Suzano, São Paulo, Brazil
