Answer:
Not only have GMO crops not improved yields, but they have also vastly increased the use of glyphosate, the active ingredient in Monsanto's Roundup herbicide. The explosion in glyphosate use is not only bad for farmers' health, but it's also bad for the environment, especially for certain birds, insects, and other wildlife. GMOs denature the role of farmers, who have always improved and selected their own seeds. GMO seeds are owned by multinationals to whom the farmer must turn every new season, because, like all commercial hybrids, second-generation GMOs do not give good results.
