Reality Check- Global Climate Norm
It seems to me that if global warming is going to be considered a climatic dysfunction, then there must be a climatic norm which we can compare today's climate against. We know there have been ice ages, times when it was colder worldwide than today, and we know those colder times came to an end and the planet grew warmer. So, here is my reality check; what specific conditions, and at what time did such exist, that we can say, that is the ideal condition for the planet?
Without that benchmark how can we determine if any other time is, or is not normal, climatically speaking?
