History and Global Warming
If we had the same population and the same technology available as was during the previous temperature swing, there would e no discussion. Now that records are being kept and compared to what we are able to measure now, it is easier to generate fear.
If the general public understood more about climate cycles, they would be more able to generate ideas on how to adapt, instead of expressing this never ending fear. As it is, the people who are most fearful are yelling the loudest without taking time to understand how our world works.
These are the same people who don't understand that many of the "chemicals" they hate actually occur in nature, and that the human body uses chemical reactions to function properly.