Sustainable agriculture and environment

Topic: Sustainable agriculture and environment
I will need you to say what “sustainable agriculture” means. And why such agriculture is under threat from modern practices. And perhaps also, what sustainable agriculture would look like today (Is Cuba, for instance, an example?). If you want to do a really good job then I really recommend you get your hands on David Montgomery’s book “Dirt; the erosion of civilisation” (You might even look at Saudi Arabia and agriculture).
Please follow the Structure of outline, and steps which you will find in attached. However, I wish that all references from the journals and books articles with including statistic way such as figures and tables about previous studies. NOT: I need high greed please because this worth 100%. Remember that I trust u.