The following is an excerpt.
Contrary to widespread consumer belief, organic farming is not the best way to farm from an environmental point if view.
The guiding principal of organic is to rely exclusively on natural inputs. That was decided early in the 20th century, decades before before the scientific disciplines of toxicology, environmental studies and climate science emerged to inform our understanding of how farming practices impact the environment.
As both farming and science have progressed, there are now several cutting edge agricultural practices which are good for the environment, but difficult or impossible for organic farmers to implement within the constraints of their pre-scientific rules.
Read the full article here: Six Reasons Organic Is NOT The Most Environmentally Friendly Way To Farm