The cinematic destruction of planet earth has been a favorite Hollywood movie theme for decades, but it has increased in popularity recently with new awareness of man’s damaging impact on the environment. Traditionally, disaster epics like the dueling 1998 blockbusters Deep Impact and Armageddon involved outside forces in the form of hurtling heavenly bodies imperiling Earth. Increasingly the threat comes from within, the result of an ecological disaster of our own making. These top 10 eco-disaster movies are prime examples of this new dynamic.