Henry Marr is only a child, but he already cares deeply about the environment, as documented in this heart-wrenching video.

Allie Hall of Mount Vernon, Washington picked up her 6-year-old son Henry from school last week, and he was feeling a little emotional. He had apparently watched a video about pollution, which caused him to get so upset that he had a break-down in the car. Allie posted a video to Facebook of the little guy's rant, and it has since gotten millions of views:

Henry has now written a book titled, "Enjoy the Planet, Don't Wreck It," and he has also been patrolling his neighborhood park and hopes to "get the whole United States to clean the planet." When he grows up, Henry would like to be a park ranger.

[Via USA Today]