ABSTRACT
A profound transformation of Earth’s environment is now apparent, owing not to the great forces of nature or to extraterrestrial sources but to the numbers and activities of people – the phenomenon of global change (Steffen et al, 2004).
A profound transformation of Earth’s environment is now apparent, owing not to the great forces of nature or to extraterrestrial sources but to the numbers and activities of people – the phenomenon of global change (Steffen et al, 2004).