SANTA CRUZ PROVINCE, ARGENTINA - NOVEMBER 27:  Ice calves at the Perito Moreno glacier in Los Glaciares National Park, part of the Southern Patagonian Ice Field, the third largest ice field in the world, on November 27, 2015 in Santa Cruz Province, Argentina. The majority of the almost 50 large glaciers in Los Glacieres National Park have been retreating during the past fifty years due to warming temperatures, according to the European Space Agency (ESA). The United States Geological Survey (USGS) reports that over 68 percent of the world's freshwater supplies are locked in ice caps and glaciers. The United Nations climate change conference begins November 30 in Paris.  (Photo by Mario Tama/Getty Images)
Undeniable climate crisis facts (2018)
Glaciers are melting; sea levels are rising. And 20 of the hottest years on record have occurred since 1996. CNN's Jennifer Gray reports the facts about the climate crisis.
1:48 • Source: CNN
Latest Videos 12 videos
SANTA CRUZ PROVINCE, ARGENTINA - NOVEMBER 27:  Ice calves at the Perito Moreno glacier in Los Glaciares National Park, part of the Southern Patagonian Ice Field, the third largest ice field in the world, on November 27, 2015 in Santa Cruz Province, Argentina. The majority of the almost 50 large glaciers in Los Glacieres National Park have been retreating during the past fifty years due to warming temperatures, according to the European Space Agency (ESA). The United States Geological Survey (USGS) reports that over 68 percent of the world's freshwater supplies are locked in ice caps and glaciers. The United Nations climate change conference begins November 30 in Paris.  (Photo by Mario Tama/Getty Images)
Undeniable climate crisis facts (2018)
01:48
Now playing
• Source: CNN
Screenshot 2026-06-06 at 1.13.43 PM.png
Smerconish: 'Iran is watching'
05:29
Now playing
• Source: CNN
still_22690499_1192720_still.jpg
Mother of Auburn student missing in Japan talks to CNN: 'I know he's still alive'
03:44
Now playing
• Source: CNN
banfield jean still.jpg
Brendan Banfield sentenced to life in prison for murders of wife, stranger amid affair with his family’s au pair
03:18
Now playing
• Source: CNN
(L-R): 60 Minutes correspondents Jon Wertheim, Lesley Stahl, and Bill Whitaker.
Three remaining '60 Minutes' correspondents say they are staying
02:30
Now playing
• Source: CNN
IRAN TUNNELS THUMB 1.jpg
Iran is quickly unearthing its huge missile arsenal, CNN analysis shows
02:50
Now playing
• Source: CNN
still_22688442_0_still.jpg
Mt. Everest guide found crawling to base camp after being missing for days
00:31
Now playing
• Source: CNN
still_22687244_338862.017_still.jpg
Senate GOP overcomes internal revolt to pass $70 billion immigration bill
07:02
Now playing
• Source: CNN
still_22684754_2963936_still.jpg
'Need him back!': Family desperate after son vanishes during trip to Japan
03:21
Now playing
• Source: CNN
22689289 - JeffriesTrumpNBA_16x9 thumb.png
Jeffries reacts to Trump's plan to attend NBA Finals Game 3
00:56
Now playing
• Source: CNN
thumb_22684221_2910298.435_thumb.jpg
FCC Chair says he has no plans to investigate CBS News for bias
01:48
Now playing
• Source: CNN
still_22682026_173189.842_still.jpg
Rubio responds to videos appearing to show Trump sleeping in Cabinet meetings
06:07
Now playing
• Source: CNN