The 2002 animated film, Ice Age: Meltdown is based off of global warming. The main characters: Manny, Sid, and Diego all came together at one point in time to create their own herd. Manny, being the leader of the pack is very lonely and depressed, being the only mammoth left on Earth. Sid the is the hyperactive, annoying sloth, whose family abandoned him long into his adulthood, and Diego is the mean and irritable tiger, who left his pack to join Manny and Sid.
Manny, Sid, and Diego all live in a valley with thousands of other animals. All the animals enjoy a waterpark of melting ice, completely oblivious of the reasons as to why there is melted ice. Finally a day comes where a vulture warns everybody of the melting ice,