On 05.06.09, the lawyer Roberto Del Manto participated in the 4th Environmental Week, sponsored by the São Paulo Subway ministering lecture about “Environmental and Legal Aspects”. With the presence of Dr. Rafael Rosset (Specialist in Environmental Law) and Dr. Rafael Lupércio (Consultant in Environmental Engineering). On that occasion were lectured the main aspects of modern environmental legislation such as the City Statute (Law 10.257/01) through the end prediction of triple responsibility of the entrepreneur (administrative, civil and criminal) in the face of changes in the artificial environmental through the economic activities.