Human population quadrupled

Industrial production went up 40 times

Energy use increased by 16 times

Water usage increased 9 times

Fish catches rose 35 times

CO2 emissions went up 17 times

Sulphur emissions went up 13 times

Other air pollutants increased 5 times

Occupants = 3.7 persons Occupants = 2.6 persons

In 1950

93 Sq M (1000 Sq Ft)

In 2004

218 Sq M (2439 Sq Ft)

Better insulation in homes

More energy efficient lamps

Better mileage from gasoline

Heating larger areas un-necessarily

More lighting. Lights not switched off

More travel by car