It's nice that you have extreme conditions that happen every few hours, but let's get a little more realistic.
The bottom of the water shouldn't be below 3c or 37f. I get you want people to know it's cold down there, but when it's -10f, the water would be frozen.
Polar region shouldn't experience rain on land, it's -20f (-29c) and would be too cold to even snow. This is a giant annoyance.
Tropics shouldn't see temperatures at 150f (66c) degrees, this just isn't realistic.
Animals shouldn't exist in climates they can't reproduce in. I see bears, but cubs die instantly when tempatures get to 150 degrees. How are bears spawning if they can't keep cubs alive?
Let's fix the climates a bit
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