In Sweden, carbon dioxide accounts for approximately 80 % of the total contributions to the greenhouse effect. The technical studies that have been done show that a great potential exists for reducing carbon dioxide emissions by means of efficiency improvements and changing over to other energy sources. An initial interim target should be to stabilize these emissions at the 1990 level from the year 2000. It is mainly within the energy and transport sectors that these changes must take place. Measures to reduce emissions for these sectors are proposed. The report describes how we can limit other greenhouse gases and what policy instruments are required to limit the harmful effects of a temperature rise. The report also deals with emissions and countermeasures against the greenhouse gases in an international perspective. Emissions of greenhouse gases in Sweden 1990 from different sectors of society are given for different fuels. (A summary with identical title is presented as a separate report, SNV-4187). 59 refs, 22 figs, 34 tabs