Man-made mass extinction that benefits arthropods

Context

To revive the Carboniferous period of earth one man and a group of other scientists have been genetically engineering and breeding land arthropods into giant sizes and exotic shapes since the 50s. The second part of the plan is to release the arthropods starting in Georgia and spreading them throughout the globe. But to accomplish this there needs to be a vacuum in a large number of ecosystems that can only be left by a mass extinction of a lot of animals (mostly vertebrates).

Question

What can someone do to cause a mass extinction that will transform the environment to be beneficial to giant arthropods?

posted over 6 years ago

Amoeba‭

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