The president is making a historic three-day trip to Alaska to address the severe consequences of climate change. In particular, his hike to the glacier was an urgent call to action to save the deteriorating landscape in the state, which has already seen the physical impact of climate change.On his second day in Alaska, Obama trekked to Exit Glacier in the Kenai Fjords National Park with photographers and members of the media to call attention to the impact of global warming.