[grey-area]

It's really important to consider the well established cycles in climate, not because they are proof that human changes don't exist, but to put our change in context.

Anthropogenic climate change is IMHO indisputably real and startlingly fast in geological terms, BUT it is dwarfed by the natural variations in climate over the long term and may even (if we don't overdo it) have saved us from another ice age in the long term. I'm not sure anyone understands what the climate is doing enough in order to make concrete predictions or to know what the interaction of our global warming with the long term cycle's cooling will do. It's great that attention is becoming more and more focused on this topic, but we don't need dire predictions and polarisation which have taken place - it is counterproductive.

It startles me how people pick sides and start using labels like denier and apologist on this topic - surely there is room for debate on what we should do about climate change? Do we have to be either for or against AGW and therefore for or against mitigating it? Isn't it reasonable to suggest looking at AGW in context, and also to show that humanity is going to have to deal with far greater swings over the long term in climate than just a few degrees?

If anything I'd say this long-term chart indicates we have to redouble our efforts to understand climate change, and if we can't control it, work on ways to mitigate its effects, because even if we control our own short term effects, long term the earth will move from ice age to tropical and we'll have to adapt.