On Wednesday, NASA scientists released a new study finding that ice sheets in Greenland and Antarctica have melted at an alarming rate in the past twenty years.
As the result of rising regional temperatures, mountain glaciers in Greenland and Antarctica have lost more ice than previously expected, now contributing the most to rising global sea levels. In fact, in 2006 alone, ice sheets lost nearly 475 billion metric tons of ice.
If this downward trend continues, melting ice sheets could cause global sea levels to rise by about six inches.
The NASA study strongly confirms similar contemporary research on Greenland ice sheet melting, reinforcing the discovery that global climate change will produce unprecedented sea-level growth.