Monsanto is the fucking devil when it comes to the environment, GMOs, or human health in general. After Obama signed the "Monsanto Protection Act" into law earlier this year, which prohibits federal courts from halting the sale of genetically modified or engineered seeds (essentially letting Monsanto do whatever the fuck it wants to in the US), the EPA increased the acceptable level of pesticides permitted on food crops (which directly translates to more glysophate being used on Round-Up ready GMO crops). Sweet potatoes, for example, will now be allowed to have 15 times the previous limit of glysophate, while carrots will be allowed to have 25 times the previous limit. Obviously, there are many more, but these are the two I can recite from memory.
There is a reason most European countries blatantly ban the use of GMO crops, and the European Union has such an extensive application process for using GMO crops that Monsanto repealed it's application to sell GMO crops to Europe last month. Europe clearly wants nothing to do with that shit-hole of a company, and it seems to be completely avoiding the enormous environmental problems that the US is currently faced with (the death of billions of bees serving as a primary example) resulting from the abundant use of incredibly toxic pesticides used to douse Round-Up Ready GMO crops, in addition to preventing the adverse effects to human health that result from consuming those crops.