There are lots of speculative culprits and maybe it's a combination, but we won't get anywhere unless we find out which ones are responsible for fouling habitab

There are lots of speculative culprits and maybe it's a combination, but we won't get anywhere unless we find out which ones are responsible for fouling habitability by desirable insects and selectively addressing those pollutants. If it's, for example, fertilizers... it would not be likely we pull back on farming output with resulting starvation in other countries that depend on affordable agricultural products in a global market (yes, we rich countries can afford a 2x or 3x cost of food, but not people in poor countries from which in a global economy we'd be sucking up their agricultural production and outbidding the locals.