Global Warming, by the Numbers*

1°F Average global increase in temperature during the past century
150 Estimated number of glaciers in Glacier National Park in 1910
30 Current number of glaciers in Glacier National Park
80% Reduction in the famous "snows of Kilimanjaro" in the past century
10% Reduction in Arctic sea ice over the past 3 decades
1/10 inch Yearly rise in global sea level
25 miles2 Annual loss in Louisiana wetlands to rising sea level
1.5 feet Sea level rise that would destroy 75% of Louisiana's wetlands
23 miles3 Annual ice volume lost to melting of Alaska's glaciers
2.5 feet Mean elevation in the Maldives, island nation home to 369,000 people.
7.9 feet Maximum elevation in the Maldives
100,000,000 World population living within 3 feet of sea level
8.8°F Average temperature increase on west Antarctic Peninsula since 1950
20 feet Amount of sea level rise that would occur if west Antarctic ice sheet were to break up

*From Raging Forces, Life on a Violent Planet, 2007, Stone, George W., National Geographic, Washington, D.C.