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ILULISSAT, GREENLAND - JULY 20:  An iceberg floats through the water on July 20, 2013 in Ilulissat, Greenland. As Greenlanders adapt to the changing climate and go on with their lives, researchers from the National Science Foundation and other organizations are studying the phenomena of the melting glaciers and its long-term ramifications for the rest of the world. In recent years, sea level rise in places such as Miami Beach has led to increased street flooding and prompted leaders such as New York City Mayor Michael Bloomberg to propose a $19.5 billion plan to boost the citys capacity to withstand future extreme weather events by, among other things, devising mechanisms to withstand flooding.  (Photo by Joe Raedle/Getty Images) (Photo by Joe Raedle/Getty Images)
ILULISSAT, GREENLAND - JULY 20:  An iceberg floats through the water on July 20, 2013 in Ilulissat, Greenland. As Greenlanders adapt to the changing climate and go on with their lives, researchers from the National Science Foundation and other organizations are studying the phenomena of the melting glaciers and its long-term ramifications for the rest of the world. In recent years, sea level rise in places such as Miami Beach has led to increased street flooding and prompted leaders such as New York City Mayor Michael Bloomberg to propose a $19.5 billion plan to boost the citys capacity to withstand future extreme weather events by, among other things, devising mechanisms to withstand flooding.  (Photo by Joe Raedle/Getty Images) (Photo by Joe Raedle/Getty Images)

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Undeniable climate change facts

CNN's Jennifer Gray give five reasons why 97% is scientists agree climate change is happening.

Undeniable climate change facts

CNN's Jennifer Gray give five reasons why 97% is scientists agree climate change is happening.