In preparation for Earth Day – April 22, 2012 – explore NBC Learn’s “Changing Planet” Special Collection. These climate science videos, produced in partnership with the National Science Foundation, cover headline issues from rising sea levels to falling lizard populations, thawing permafrost to withering crops. Each video is accompanied by an activity provided by “Windows to the Universe” at the National Earth Science Teachers Association, to engage and involve your students in examining and understanding climate issues.

Higher Ed subscribers: To access the “Changing Planet” collection, please click here.