One third of computers in the US are left on nights and weekends. Computer chips generate more toxic waste than any other part of the computer. Seven hundred different materials are used in computer manufacture and about one half are hazardous. By the year 2005, the 150 million PCs in US landfills will occupy 300 million cubic feet of space, equivalent to one football field stacked a mile high in trash.
Laptop computers weigh one tenth as much as desktops and require one third of the electricity.
Our bodies, however, respond to natural hormones in quantities as small as parts per quadrillion. Worldwide there are 55 mills now producing totally chlorine-free paper. Only four of those mills are located in the United States. It requires twenty times more energy to make a sheet of virgin paper than it does to laser print an image on it. The least energy-intensive way to send and receive a fax is by a computer modem.