GMO crops are able to withstand extreme weather caused by climate change (that’s good); but pesticide resistant crops are creating weeds that are tougher to kill, in an analogous way that overuse of antibiotics is leading to antibiotic-resistant bacteria, thereby necessitating tougher pesticides that are often bad for the environment (that’s bad); according to the World Health Organization, the American Medical Association, the US National Academy of Sciences, and the British Royal Society, GMOs are safe to eat, even offering vitamins previously unavailable in certain crops (that’s good); but GM crops may reduce biological diversity by spreading into non-GM plants and replacing them in our agricultural fields (that’s bad).