Nina and Nana knock on ice!


Polar ice cap melt is not the easiest topic for a knock knock joke but hey my mission in life is to find humour in unexpected places!

Are we in the middle of one of the cycles of a giant ice age (which usually runs for a blink-of-the-eye-in-geological-terms-40000 years) or are all the nay-sayers correct about global warming?



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