Much of environmental management has been reactive. Human action (excess or unwise use or both) created problems; overtime, the problems became apparent and need for solutions inescapable. Remedies had to be found and put in place. Picture: Smog in Los Angeles, Courtsey: Nathan via Flickr.com under creative commons license . One of the early debates, I recollect, (apart from deforestation due to urbanization and over-exploitation of forests and the consequent need for forest-reserv