I do believe that the accommodation of all three is necessary. I look at technology as an example. As a society, can we not do any better than the internal combustion engine? We put people on the moon, we put satellites in space, we build computers, we can replace hearts, but can't we do better than the internal combustion engine? There must be other reasons why we haven't moved beyond it.
There is technology that's necessary; adaptation is absolutely necessary; and mitigation is necessary, as Dr. Peltier said.