environmental goods and asia draft background paper for discussion robert hamwey this is based on analysis undertaken by the unep unctad capacity building task force trade environment development cbtf 2 1 wto negotiations there are two broad classes of under in specifically as presented figure these egs class a which include manufactured chemicals used directly provision services systems comprised thereof to provide an service such wastewater treatment solid waste management air pollution control etc wide variety basic industrial products can be employed purposes b consumer not primarily but whose production end use or disposal have positive characteristics relative similar substitute sometimes referred environmentally preferable epps inherent superior qualities compared 1995 however fundamentally different from