“I don’t see scientific evidence that a four degree Celsius planet can host eight billion people,” he said. “This is, in my assessment, a scientifically justified statement, as we don’t have evidence that we can provide freshwater or feed or shelter today’s world population of eight billion in a four degree world. My expert judgment, furthermore, is that it may even be doubtful if we can host half of that, meaning four billion.”
So it is half the worlds populTion?
