CG is not a big fan of using chemicals and fertilizers. But he really dislikes invasive grass. Responsible use of an herbicide can have zero impact on the environment. If the product is not over-applied, the liquid is absorbed by the plant, and there is not any run-off. This particular product is harmless to landscape plants, but kills-off invasive grass (without the remnants of the grass being toxic). The mixture can be harmful while it's in liquid form, so 'Less is More' rings true with this product.
By having grass-free flower beds, more plants are able to bloom and thrive. So in a way, the responsible use of this product can have a positive effect on the environment. It works best when applied at the specified outside temperature (and when it's not likely to rain!).
