Monsanto, the biotech company that manufacturers glyphosate-based pesticide resistant genetically modified seeds, has announced changes in safety procedures for handling its GMO corn after the death of two Illinois teens and injuries to six other workers.

In a recently released report by an international group of scientists funded by Earth Open Source, the team of researchers conclude that as far back as the 1980s, regulators knew that exposure to the glyphosate-based pesticide commonly marketed as Monsanto's Roundup causes birth defects.