Answer :

I believe it was the growth of advanced machinery. Throughout the 18 and 19 century, we began to change. Make more advanced technology because it made life much more easier. They called it the Industrial Revolution. Keyword industrial. That's what my instructor taught me.
"Sustainability" bring to mind, although applications such as soil conservation process, sustainable production covers more than ecological concerns. Environment entries by minimizing world resources in a good way of due diligence, as well as sustainable agricultural producers - American Cotton Industry like - farms' economic viability and sustain community life quality as a whole to improve.