Riverside—According to the nonprofit environmental organization Friends of the Earth, the Monarch Butterfly population has declined by nearly 90 percent over the last twenty years, purportedly the result of a massive increase in the use of an herbicide/pesticide, glyphosate, contained in the commonly used Monsanto product Roundup®.
As the Monarch butterfly population has continued to decline, the amount of Roundup® being used has increased from 25-30 million pounds per year to 180-185 pounds each year.
The World Health Organization has identified Roundup® as a probable carcinogen.