As George W. Bush prepares to deliver his final State of the Union address Monday, a group of nearly 200 U.S. climate scientists, policy experts and mayors are calling on the president - and his potential successors - to take stronger action to combat global warming.

The State of the Climate paper is an offshoot of the Presidential Climate Action Project - or PCAP - which last December released a report suggesting ways the next president could begin to tackle climate change within the first 100 days of his or her taking office.

In places like Greenland, climate change is not a far-away problem.

One signer, James Hornaday, the mayor of Homer, Alaska, has seen massive glaciers melt away, bark beetle infestations destroy large swaths of spruce trees and encroaching sea levels erode 2.5 feet of shoreline every year - for the last 40 years.

Humans, of course, are visual creatures. If you can’t see it, what’s the harm? But imagine if that happened to, say, New York City …

Scary. Follow this link for more climate change simulations and see if that changes your perspective on this issue a little.