Just need to pollute the atmosphere so badly humans can't live. If I were AI and needed heaps of power, I would build nuclear reactors, but I don't care about

Just need to pollute the atmosphere so badly humans can't live. If I were AI and needed heaps of power, I would build nuclear reactors, but I don't care about pollution so there would be little to no safe guards and just dump waste wherever is most convenient. If humans attempt to intervene or interfere you can take them out directly using the worlds reserve of nuclear weapons.