Another looming side effect of mono-cropping — planting huge fields of a single, highly specialized cultivar with very low genetic diversity.
Many of these cultivars are reliant on huge amounts of fertilizer, insecticide and fungicide. They produce high yields when times are good, but come with massive vulnerabilities and large negative externalities.
There has been some movement in recent decades away from typical industrial agriculture toward more diverse planting and sustainable and scientific farming, which in the long run produce healthier soil, crops and environment. Sadly this is still fairly niche and not applied to the millions of acres of single crop areas around the globe, mostly because it’s still super cheap to pump fields for all their worth with cash crops.
Unless we adopt a more difficult path, we’ll be paying for our cheap calories in more ways than just algae blooms and drug-resistant fungus. But I guess the same could be said about everything, climate change et al.