Il cambiamento climatico è uno dei fattori che più di tutti sta incidendo sul nostro pianeta, che, negli ultimi anni – in un arco di tempo brevissimo – ha rimodellato interi paesaggi, facendone addirittura sparire altri.

La Nasa ha pubblicato sul suo sito una serie di foto che denunciano quanto sta avvenendo, cercando così di sensibilizzare l’opinione dei cittadini e non solo. Il sito Images of Changes mostra infatti 309 fotografie del “prima e dopo” di tantissimi luoghi che sono stati profondamente modificati dall’intervento umano e dal riscaldamento globale.

Rilievi satellitari, ma anche fotografie d’epoca, che ci permettono di vedere quanto il globo terracqueo sia profondamente mutato a causa dello sconsiderato intervento dell’uomo sulla natura.

• Lake Urmia Iran (2000-2014)
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Lake Urmia 2000-2013,” U.S. Department of the Interior / USGS and NASA. hide creditsdownload image
• Passaggio uragano Katrina, New Orleans
  NASA Earth Observatory
• Lago Mead, Nevada/Arizona
  NASA Earth Observatory
• Goose Lake, California/Oregon (2013-2015)
  NASA Earth Observatory
• Nairobi Kenya
  United Nations Environment Programme (UNEP). From Kenya Atlas of our Changing Environment (2009); Division of Early Warning and Assessment (DEWA), UNEP, Nairobi, Kenya
• Great Sand Dunes
  U.S. Geological Survey (USGS) Landsat Missions Gallery “The Great Sand Dunes National Park,” U.S. Department of the Interior / USGS and NASA.
• Ghiacciaio Mýrdalsjökull, Islanda
  NASA Earth Observatory, using data from the U.S. Geological Survey.
• Ghiacciaio Columbia, Alaska
  NASA Earth Observatory, using data from the U.S. Geological Survey.
• Dubai Islands
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Dubai’s Islands,” U.S. Department of the Interior / USGS and NASA
• Cuesta del Viento, Argentina
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Cuesta del Viento Reservoir,” U.S. Department of the Interior / USGS and NASA.
• Delta Fiume Giallo, Cina (1985 – 2014)
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Huang He Delta and Lauzhou Bay,” U.S. Department of the Interior / USGS and NASA
• Inondazione Francia
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Effects of Flooding: Hyères, France,” U.S. Department of the Interior / USGS and NASA.
• Ghiacciaio, Yosemite National Park ( 2009 – 2014)
  U.S. National Park Service
• Lago d’Aral, Uzbekistan/Kazakistan
  NASA’s Earth Observatory
• Lake Powell (1999-2015)
  NASA’s Earth Observatory
• Incendi California
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Fires in California, USA,” U.S. Department of the Interior / USGS and NASA.
• Siccità in California
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Drought Conditions in California, USA,” U.S. Department of the Interior / USGS and NASA.
• Riserva Elephant Butte, New Mexico
  NASA Earth Observatory
• Incendi Australia
  Earthshots: Satellite Images of Environmental Change, “Wyperfeld National Park,” U.S. Geological Survey.
• Singapore
  Earthshots: Satellite Images of Environmental Change, “Singapore,” U.S. Geological Survey.
• Tifone Nari, Cambogia
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Flooding in Cambodia,” U.S. Department of the Interior / USGS and NASA.
• Diga Mirani, Pakistan
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Mirani Dam,” U.S. Department of the Interior / USGS and NASA.
• Fiume Agno dopo tifone Haiyan, Filippine
  Operational Land Imager onboard Landsat 8 and the Enhanced Thematic Mapper Plus onboard Landsat 7
• Ghiacciaio Pine Island
  NASA Earth Observatory
• Incendi Alaska
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Fires Scar Alaskan Landscape,” U.S. Department of the Interior / USGS and NASA.
• Lago Chapala, Messico
  United Nations Environment Programme (UNEP) From Latin America and the Caribbean Atlas of our Changing Environment (2010).
• Giacimenti Texas
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Texas Oil Field Expansion, 1984 to 2013,” U.S. Department of the Interior / USGS and NASA.
• Incendio Colorado
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Black Forest Fire,” U.S. Department of the Interior / USGS and NASA.
• Bahr al Milh, Iraq
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Bahr al Milh,” U.S. Department of the Interior / USGS and NASA.
• Penisola artificiale Canada
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Leslie Street Spit and Tommy Thompson Park,” U.S. Department of the Interior / USGS and NASA.
• Incremento agricoltura Nilo
  Earthshots: Satellite Images of Environmental Change, U.S. Geological Survey.
• High Park incendio
  U.S. Geological Survey (USGS) Landsat Missions Gallery “High Park Fire, Colorado – June 2012,” U.S. Department of the Interior / USGS and NASA, and denverpost.com
• Frana Washington
  NASA Earth Observatory
• Crescita urbanistica, Sud Corea
  U.S. Geological Survey (USGS) Landsat Missions Gallery “32 Years of Change: Incheon, South Korea,” U.S. Department of the Interior / USGS and NASA.
• Lago Urmia, Iran
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Lake Urmia 2000-2013,” U.S. Department of the Interior / USGS and NASA.
• Desertificazione Mauritania
  : Earthshots: Satellite Images of Environmental Change, “Rosso, Mauritania Desertification,” U.S. Geological Survey.
• Delta del Fiume delle Perle, Cina
  Images taken by the Thematic Mapper sensor onboard Landsat 5 and the Operational Land Imager onboard Landsat 8
• Alluvione Death Valley, California
  U.S. Geological Survey (USGS) Landsat Missions Gallery: “Death Valley 1,000-year Flood Event,” U.S. Department of the Interior / USGS and NASA
• Inondazioni Carolina del Sud
  NASA Earth Observatory
• Ghiacciaio Lyell, Yosemite National Park (1883-2015)
  U.S. National Park Service. 1883 photo: USGS/Israel Russell. 2015 photo: NPS/Keenan Takahashi
• Ghiaccio Antartide
  Earthshots: Satellite Images of Environmental Change, U.S. Geological Survey.
• Lago Etang Saumatre, Haiti
  Thematic Mapper sensor onboard Landsat 5 and the Enhanced Thematic Mapper Plus onboard Landsat 7
• Salton Sea, california
  U.S. Geological Survey (USGS) Landsat Missions Gallery “The Salton Sea,” U.S. Department of the Interior / USGS and NASA
• Ghiacciaio Qori Kalis, Peru
  Dr. Lonnie G. Thompson, Distinguished University Professor, Byrd Polar and Climate Research Center, The Ohio State University
• Topaz Solar Farm, California
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Topaz Solar Farm, California,” U.S. Department of the Interior / USGS and NASA
• Delta Mississippi, Louisiana
  NASA Earth Observatory using data from the U.S. Geological Survey.
• Incendi Australia
  U.S. Geological Survey (USGS) Landsat Missions Gallery “Sampson Flat Fire, Australia,” U.S. Department of the Interior / USGS and NASA.
• Inondazione, Mozambico
  NASA’s Earth Observatory
• Eruzione lavica Vatnajökull, Islanda
  NASA Earth Observatory
• Deforestazione Kenya
  United Nations Environment Programme (UNEP). From Kenya Atlas of our Changing Environment (2009); Division of Early Warning and Assessment (DEWA), UNEP, Nairobi, Kenya