Before After
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After
Before
Glaciers - Source: U.S. Geological Survey (USGS) Landsat Missions Gallery: “As Glaciers Worldwide Are Retreating, One Defies the Trend”; U.S. Department of the Interior / USGS and NASA.
Before After
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After
Before
Lake Powel, USA - Source: U.S. Geological Survey; National Land Imaging Image Collections
Before After
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After
Before
Recovery of Lake Merdith, USA - Source: U.S. Geological Survey’s National Land Imaging Image Collections, Canadian River Municipal Water Authority and National Weather Service.
Before After
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After
Before
Rare Snowfall in Africa’s Sahara Desert (Prior to December 2016 snowfall shown here (After), the Last snowfall was in 1979 (Before))- Source: Source: U.S. Geological Survey (USGS) Landsat Missions Gallery: “Rare Snow Falls at the Edge of Sahara Desert”; U.S. Department of the Interior / USGS and NASA.
Before After
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After
Before
Canadian Glaciers. Source: USGS and NASA