4.1   Soil, Groundwater Contamination and Remediation

4.2   Liquid and Solid Waste (Management and Remediation)

4.3   Air pollution and Clean Development Mechanism (CDM).

4.4   Solar Energy with Renewable Energy

4.5   Sustainable Development in Oil and Gas Industry.

4.6   Safety and Occupational Health in Oil and Gas Industry.

4.7   Oil Spills.