This paper deals with the market for SO{sub 2} emission allowances over time and electric utility compliance choices. For currently high emitting plants ( 2.5 lb SO{sub 2}/MMBtu), the 1990 Clean Air Act Amendments (CAAA) provide for about twice as many SO{sub 2} allowances to be issued per year...

The Water Framework Directive (WFD) proscribes specific levels of contaminates present in rivers and lakes in the UK, these contaminants come from a wide range of sources such as food additives present in faeces, agricultural runoff and drinking water additives such as iron dosing. Water...