There is no doubt that the use of renewable resources can be sustainable, but what about non-renewables? I stumbled across this site of IEA Clean Coal Centre, which “provides a source of unbiased information on sustainable use of coal world-wide. Services are delivered to governments and industry through direct advice, review reports, facilitation of R & D and provision of networks.”
The IEA stands for International Energy Agency and it was founded in 1974 within the framework of OECD by member countries (Austria, Canada, Italy, Japan, Sweden, the UK and the USA). Currently the services are governed by representatives of these countries as well as the European Commission and sponsors (Australian Coal Industry Consortium; BHEL, India; Beijing Research Institute of Coal Chemistry, China; Coal Association of New Zealand; Danish Power Group; Eskom & Anglo Coal, South Africa; Netherlands Power Group, Netherlands).
The aim of IEA: “to foster co-operation among the twenty-four IEA participating countries in order to increase energy security through diversification of energy supply, cleaner and more efficient use of energy, and energy conservation. This is achieved, in part, through a programme of collaborative research and development of which IEA Clean Coal Centre is by far the largest and the longest established single project.”
There are a number of Clean Coal Technologies (CCTs) that the programme presents. These can help coal companies to make the use of coal more environmentally friendly. They include, for instance, pulverised coal combustion (PCC) or cyclone fired wet bottom boilers .