It's certainly not proof of absence. But when the need for climate models that discount AGW pertains to a trillion dollar industry with a large staff of comput

It's certainly not proof of absence. But when the need for climate models that discount AGW pertains to a trillion dollar industry with a large staff of computer modeling specialists, using the same hardware and often the same software as climate scientists, and they can't come up with something, it's evidence, and it's strong evidence.