By the Numbers

(page under construction- data source: World Bank)

1             Number of known habitable planets in the universe.

1.4%         Average annual global population growth.

100         Global number of cars per 1000 people.

38%         Proportion of land devoted to agriculture worldwide.

30.5%         Proportion of land area of Earth that is forested.

11%             Proportion of total water consumption attributed to households in Australia.

69%             Proportion of total water consumption attributed to agriculture in Australia.

1 969 000 ha             Area of Australia known to be affected by salinity

6 438 000 000             World population

20.9 million                 Australian Population March 2007

4 million                     Australian population 1901

2.7                             Population density in Australia (people per km2)

23 660                         Population density in Monaco (people per km2)

44.57                             Population density on Earth (people per km2)

88.2%                         Proportion of Australian population living in urban areas.

376                             Number of known mammal species in Australia

63                             Number of threatened mammal species in Australia.

17.8 tons                 CO2 emissions per capita (Australia)

4.3 tons                     CO2 emissions per capita (World)