mob201
Joe's Hopper
We don't even get the Rush Limbaugh show here. So, nope, he didn't tell me that. So the ice freezing in the arctic ocean isn't ice? It's the same principal if you think about it. The amound of displaced water will still be the same if the arctic ice melted.
You're right. I'm not a scientist but my half-assed lay person's understanding is that the melting of arctic ice is not a major threat in terms of sea level rising. The melting of ice caps and glaciers makes the sea level rise, making Greenland and the Antarctic (which has 90% of the world's ice) bigger threats. But it's a catastrophic threat, in the sense that small changes can trigger a tipping point. If an enormous glacier on the Antarctic calves, that could make a very big difference.
But I remember my wife who is smarter than me about these things saying that the reason why the sea level is rising is more attributable to the warming of the oceans, which decreases the density of water - thermal expansion.
At any rate, the ice cube analogy doesn't work. Unless the ice cube is in the tray rather than in a glass of water, and you let it thaw on the kitchen counter. Your shrunken little cube has now become a miniature Atlantic, brimming over the edge of the tray. That's the threat as I understand it. Anyway again I wish it wasn't true but I'm too much of a pessimist not to see major changes ahead. The Northwest passage is now navigable, companies are vying to mine rare minerals in Greenland, where they've been covered with ice for all of recorded history.