If agriculture is to remain productive, it must preserve the land, and the fertility and ecological health of the land; the land, that is, must be used well. (religion-online.org)
Just how accurate can the fossil record be, when it comes to things like weather cycles or the finer points of ecological health in the global environment? (earthtimes.org)
They are vital for ecological health, but increasing research is finding that they also contain many compounds necessary for human health. (wellnessmama.com)