A critical skill for magicians is to be able to misdirect your attention while executing the deception. “Look at this hand while I fool you with the other one.” Such is the current attack on climate change by those who try to convince us that it’s not an important issue. The new strategy is not so much to deny that climate change isn’t happening, but rather to state that it has happened before and is natural process. So why should we worry?
This change from “it isn’t happening” to “it’s happened before” would be irrelevant and silly if it weren’t so dangerous. The basic fact is true. The earth has been both significantly warmer and colder than now. Likewise, ocean levels have been both higher and lower than they are now. So what’s the big deal?