Crevasses in Mendenhall Glacier. Juneau, Alaska, USA. For spectacular views over Mendenhall Glacier, hike the West Glacier (Mt. McGinnis) Trail 6-9.5 miles round trip, 1000-3200 feet gain, best late May-September. The Trailhead is a half mile from Mendenhall Campground entrance by road. A good trail skirts the northwest side of Mendenhall Lake then climbs through forest to the bare rock along the glacier's west side, where some scrambling and route finding skills are required. Mendenhall Glacier flows 12 miles from downtown Juneau. Mendenhall Glacier Recreation Area is a unit of Tongass National Forest. Mendenhall Glacier has retreated 1.75 miles since 1929, when Mendenhall Lake was created, and over 2.5 miles (4.0 km) since 1500. Since the mid 1900s, Alaska has warmed 3 degrees Fahrenheit and its winters have warmed nearly 6 degrees. Human-caused climate change induced by emissions of greenhouse gases continues to accelerate the warming of Alaska at an unprecedented rate. Climate change is having disproportionate effects in the Arctic, which is heating up twice as fast as the rest of Earth.
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