Iceberg: The American Heritage Science Dictionary: “A massive body of floating ice that has broken away from a glacier or ice field. Most of an iceberg lies underwater, but because ice is not as dense as water, about one ninth of it remains above the surface.”
I worry that future generations will only be able to view icebergs in a dictionary or other media forms. Education and responsibility are the keys to change, in order to avoid a catastrophic meltdown.