Critics from the left maintain that modern large scale production agriculture and 'factory farms' are another example of free market degradation of the environment. This notion is not correct.
In fact the profit motive and large scale agriculture have led to the development of technologies that save energy, reduce pollution, and result in more abundant and healthier foods. Examples follow:
1ST GENERATION GM FOODS
Bt Corn: targets only pests that feed on the plant. Leads to a reduction in pesticide use, exposure, and pollution.
Roundup Ready Crops: Allows producers to switch away from using very toxic and environmentally unsound herbicide and use the much safer and low residual 'glyphosate' herbicide.
In addition these products require less management and less mechanization- saving on fuel,soil erosion, and air pollution.