2012 SUSTAINABILITY REPORT
Units of Measurement
Carbon dioxide equivalent (CO2e): the conversion of all greenhouse gasses to their equivalent mass of
carbon dioxide. Reported as “tCO2e,” or, tonnes of carbon dioxide equivalent.
Dollar ($): all dollar amounts are in US dollars unless otherwise indicated.
Gram (g): the standard unit of mass in the metric system. One kilogram is about the mass of a litre of water.
 One kilogram (kg) = 1,000 grams
 One milligram (mg) = 0.001 grams
Hectare (ha): the common unit of land measure in the metric system.
 One hectare = 10,000 square meters
Joule (J): the joule is the metric unit of work or energy. One joule is the amount of work done when an applied
force of one Newton moves through a distance of one meter in the direction of the force.
 One gigajoule (GJ) = 1,000,000,000 joules
Kilowatt hour (kWh): a unit of work equivalent to the work done when a rate of work of 1,000 watts is
maintained for one hour.
 One megawatt hour (MWh) = 1,000 kWh
Litre (L): the standard unit of volume in the metric system.
 One kilolitre (kL) = 1,000 litres
 One mega litre (ML) = 1,000,000 litres
 One litre = 1,000 cm3
 One mega litre = 1,000 m3
Tonne (t): a unit of mass in the metric system.
 One tonne = 1,000 kg
 One tonne = approximately 2,200 pounds
 Mt = million tonnes
Troy ounce (oz): The traditional unit of weight for gold is the troy ounce. Although the metric system is used
increasingly in mining and the gold business, the troy ounce remains the basic unit in which the price of gold is
quoted. All ounces in this report are troy ounces.
 One troy ounce = 31.1034 grams
 32.15 troy ounces = 1 kilogram
Watt (W): the watt is used to measure power or the rate of doing work. One watt is a power of one joule per
second.
 One kilowatt (kW) = 1,000 watts
 One megawatt (MW) = 1,000,000 watts
Prefixes
Kilo (k)
Mega (M)
Giga (G)
Terra (T)
Goldcorp Inc.
Thousand
Million
Billion
Trillion
103
106
109
1012
1,000
1,000,000
1,000,000,000
1,000,000,000,000
1