The Kyoto Fund (EUR 6 million in 2008) is financed primarily by an excise duty on road fuels (the “Kyoto cent”) and by a portion of the annual road tax. Only Ireland and Korea had higher growth rates over the period 1990-2007. Opinion on fiscal aggregates for the period subsequent to 2009 from the viewpoint of sustainable development criteria, opinion on opportunities and challenges relating to the growing use of biomass. For example, for a vehicle emitting 145 g of C02/km the tax is: diesel engine, 145*0.9*1.1 = EUR 143, petrol engine, 145*0.6*1.1 = EUR 95.