— consume 30–40 per cent of all the nation’s energy
— add 30–40 per cent to atmospheric emissions
— use 60 per cent of all electricity
— use 25 per cent of all water
— take up 35–40 per cent of the municipal solid waste stream
— use between 25–30 per cent of all wood and materials
— exploit significant amounts of land — 19,000 square miles in the
USA from 1982 to 1992