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Green Stories Of 2012: Environmental News In Review (PHOTOS)

PHOTOS: 20 Big Green Stories Of 2012
These undated handout images provided by NASA shows the extent of surface melt over Greenlands ice sheet on July 8, left, and July 12, right. Measurements from three satellites showed that on July 8, about 40 percent of the ice sheet had undergone thawing at or near the surface. In just a few days, the melting had dramatically accelerated and an estimated 97 percent of the ice sheet surface had thawed by July 12. In the image, the areas classified as probable melt (light pink) correspond to those sites where at least one satellite detected surface melting. The areas classified as melt (dark pink) correspond to sites where two or three satellites detected surface melting. Nearly every part of the massive Greenland ice sheet suddenly and strangely melted a bit this month in a freak event that concerned scientists had never witnessed before. NASA says three different satellites saw what it calls unprecedented melting from July 8 to July 12. Most of the thick ice remains, but what was unusual was the widespread area where some melting occurred. (AP Photo/Nicolo E. DiGirolamo, SSAI/NASA GSFC, and Jesse Allen, NASA Earth Observatory
These undated handout images provided by NASA shows the extent of surface melt over Greenlands ice sheet on July 8, left, and July 12, right. Measurements from three satellites showed that on July 8, about 40 percent of the ice sheet had undergone thawing at or near the surface. In just a few days, the melting had dramatically accelerated and an estimated 97 percent of the ice sheet surface had thawed by July 12. In the image, the areas classified as probable melt (light pink) correspond to those sites where at least one satellite detected surface melting. The areas classified as melt (dark pink) correspond to sites where two or three satellites detected surface melting. Nearly every part of the massive Greenland ice sheet suddenly and strangely melted a bit this month in a freak event that concerned scientists had never witnessed before. NASA says three different satellites saw what it calls unprecedented melting from July 8 to July 12. Most of the thick ice remains, but what was unusual was the widespread area where some melting occurred. (AP Photo/Nicolo E. DiGirolamo, SSAI/NASA GSFC, and Jesse Allen, NASA Earth Observatory

The year 2012 saw extreme weather ravage regions around the world, a frustrating presidential campaign, severe disease outbreaks, controversial energy developments and climate change in action.

From Hurricane Sandy to a lioness "befriending" an antelope, a vast array of environmental news was documented in photos and videos. Check out the slideshow below for some of the most memorable green stories of 2012.

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