Today is shaping up as a dark day for the world. I don't think I feel like commenting on it. Let's cheer up.
About 20% of the Arctic ice cap has already melted, and the rest should have melted by 2070. Of course this insalubrious event could be partially reversed in the case of a nuclear (or 'nucular' , perhaps I should say) winter, which suddenly looks like a not unlikely possibility.