Glacier National Park Is Melting Away
Description: Glacier National Park used to have 150 glaciers and it now has 25. Photographic evidence in this video shows how drastically the glaciers are being shaped by a warming planet. This phenomenon can be used to show two forms of freshwater (ice and water) in elementary science and as evidence for global warming in secondary.
Web Resource: Retreat of Glaciers Since 1850 - Wikipedia
Ocean Acidification
Description: Ocean acidification occurs when carbon dioxide in the atmosphere is absorbed by the oceans. This process disrupts biological systems and has been described as the "evil twin" of global warming.
Web Resource: What is Ocean Acidification? - NOAA
