Polar Bears Survived the Ice Free Arctic: Steven Goddard tells us that because ice-free summer conditions existed for at least some time during the period of 15,000 to 5,000 years ago, polar bears will be just fine when Global Warming really kicks in.
Wait! Global Warming won’t ‘kick in’ because it’s not happening! Not. Happening.
Also, CO2 levels were in the thousands of PPM back in the Cambrian, so CO2 can’t be a problem. Wait, there wasn’t any life on land back then. Not such a great comparison after all.