If you browse NASA`s website you can find and compare some of these photos that show how we, humans, have dramatically altered our world over the years. It`s incredible and in many cases sad what happened to our planet in the last 5 to 100 years.
Take a look!
1. Pedersen Glacier, Alaska. 1917 Vs. 2005
2. Aral Sea, Central Asia. 2000 Vs. 2014
3. Lake Oroville, California. 2010 Vs. 2016
4. Carroll Glacier, Alaska. 1906 Vs. 2003