Things that can destroy Earth with H
As a species we could trigger global nuclear doom.
Runaway greenhouse heat could bake Earth lifeless.
Full-scale H-bomb war could make Earth unlivable.
- Hatred
 - hot sun
 - Hydrogen
 - huge asteroid
 - hammer
 - Heatwave
 - H-bomb
 - huge meteor
 - hoes
 - Humanity
 - Hailstorm
 - Hades
 - Hackers
 - Hot weather
 - Heatwaves
 - Hell fire
 - huge bomb
 - Heroin
 - Haley's comet
 - Huge asteroids
 - Heat death of the universe
 - haters
 - Hunters
 - Hot air
 - Heathens
 - Heat ray
 - Heat death
 - hazardous waste
 - Huge explosion
 - Hot climate
 - Helium bomb
 - Hat
 - Huge rock
 - Huge bombs
 - H bomb
 - horrible people
 - HIV
 - Hazards
 - House
 - Hopelessness
 - Him
 - Hazard
 - humidity
 - Hail storm
 - Hunting
 - Hot rocks
 - hungry people
 - Huge meteors
 - hubris
 - High temperatures
 - Haze
 - Hammers
 - Human beings
 - Hippies
 - helicopters
 - Huge comet
 - Hotness
 - horse
 - horny people
 - Hepatitis
 - helium explosion
 - Health
 - hard rocks
 - Hannah
 - Hairspray
 - Heavy meteor
 - harpoons
 - harmful gases
 - Hairy men
 - hacking
 
The words in the list Things that can destroy Earth with H come from players of the word game City, Country, River.