Researchers found that two of the Tetons' biggest glaciers have lost more than 20 percent of their surface area since the late 1960s.
Competition for resources, ‘climate migrants,’ failed states are among top concerns.
Global warming may have accelerated the irreversible loss of ice shelves that are thousands of years old, say scientists.
If the pattern continues, warming effects could reach up to 900 miles inland, melting permafrost
Scientists say the breakup is a harbinger of what's to come if the region continues warming.