Saturday, March 29, 2008
Proof of Ozone Holes!
Brian was asking me something about how long a day was in the North Pole. We did not get very far with that discussion because Sean jumped up to grab our globe (see picture), gleefully showed us the holes and said, "There's no North Pole, there's just a North Hole! Look! And there's no South Pole, there's just a South Hole!"
Yeah yeah, funny har har...that's our 14-year old globe that was single-handedly destroyed by Sean a couple of months ago. The globe was in perfect condition till Sean took an interest in it.
Back to Brian's question. Those of us who hail from around the equator take for granted our experience of equal day length every day of the year. In December, the North Pole experiences almost 24 hours of darkness and the South Pole 24 hours of day...the reverse is true in June.
Some links here.
BBC: The Seasons
Seasons & earth-sun relations
And extending on Sean's unwitting creation of the ozone holes.
NASA confirms North Pole Ozone Hole trigger
The Ozone Hole
Latest status of the Ozone Hole