These movies include disasters caused my man: nuclear testing, biological warfare research, and just mucking up the earth.
Nuclear
"Airtight" ('99) nuclear testing cracks the earth resulting the loss
of air, man goes underground to survive.
"Beast of Yucca Flats, The" ('61) A Russian scientist is transformed by an atomic test into a hulking monster.
"Chia Syndrome" ('79) Flaw in power plant threatens meltdown.
"Crack in the World" ('65) Deep atomic blasts starts earthquake.
"Day After" ('83TV) Post war, radiation kills
"Day One" ('89 TV) Documentary about atomic bombs
"Day the Earth Caught Fire, The" ('61UK) US & USSR bomb blasts throw the Earth
out of its orbit and toward the sun.
"Day the World Ended" ('56) Post war, normals vs mutants
"End of the World" ('62) (aka Panic in the Year Zero) Family heads for
the hills to avoid nuclear war.
"Fail Safe" ('64) Faulty tty leads to US & USSR trading atomic blasts.
"Fire" ('51) ?
"In the Year 2889" ('66) Post war, mutants
"Last Man on Earth" ('64) ?
"Last Woman on Earth" ('60) ?
"Omega Man" ('71) Battle between normal and mutant survivors of nuclear war.
"On the Beach" ('59) Survival after nuclear war.
"Quiet Earth" ('85) Survivors of mysterious apocalypse
"Testament" ('83) Post war, fallout
"Voyage to the Bottom of the Sea" ('61) Submarine after nuclear explosion.
"War Game, The" ('65) Post war
"World, Flesh, Devil" ('59) ?
Biological/Chemical
"It's Alive" ('74) a chemical/mutant
"Pandora's Clock" ('96TV) Virus threatend plane-load of people
"Proteus" ('95) Stranded smugglers are stalked by a genetic monstrosity
"Sky's on Fire, The" (2000TV) A scientist races to fix the ozone layer
"Spill" ('96)Chemical spill threatens Yellowstone park.
"Stand, The" ('94TV) Super virus kills most of the population
"They Came From Within" ('75) Genetically engineered paracites
"Toxic Avenger" ('85) Geek falls in ooze, fights crime.
"Village of the Giants" ('65) Beau Bridges and friends eat some goop
and become really big teenagers.
Other
"Arrival, The" ('96) Global warming (helped by aliens)
"Day of the Animals" ('77)The depletion of the earth's ozone layer causes animals above the
altitude of 5000 feet to run amok.
"Fatal Error" ('99) A technological virus kills computer users.
"Final Run" ('99) A passenger train's computer system goes haywire.
"In old Chicago" ('37) Mrs. O'Leary's cow starts the great fire.
"Storm" ('99) Luke Perry is part of a team that creates a machie-
generated hurricane that threatens Los Angeles
"Waterworld" ('95) Global warming floods the world
"Y2K, the Movie" ('99TV) Ken Olin leads a small cast in a weak
attempt to raise fear for the impending world collapse due to computers
in this terrible disaster of a disaster movie.