What do you think will cause the end of the world? Well for me I think it will be zombies cuz out environment is going to shit plus there are more diseases so that's what I think but I wanna know what you guy's think haha XD plus be realistic nothing like unicorns- wait nvm I put zombies so do whatever ya like just make it sound realistic that's all haha

If we don't find a way to get into long term space travel, then either overpopulation, war, or global warming will kill us. By that, I mean the human race willl kill itself.

Um Donald trump (XD) there might be a world war 3 because I remember hearing Donald trump saying he wanted to fight Isis,also because of that people will panic

Another idea:
Zombies.Scientists will one day create the most horrible medicine,give it to doctors who will give it to a patient,and that patient when he/she take the medicine,he/she might turn into a zombie,biting others,and that will be the start of it

No trees. People are cutting down trees. It's gotta stop!

Bad or/and Evil people (:

CORONAVIRUS

Donald trump the Donald duck!:D

Maybe the sun will take a poop and the poop accidentally hit our planet

Humanity itself
One day, we will over populate. On that day,food will quickly run out. And then wars will start. And those wars will end us.

Here is my answer for the end of the world:
If Donald Trump, Hillary Clinton, OR Bernie Sanders gets elected as president

Otay dis may sound messed up and all but meh i don't give but anyways you guy's already know why I said zombies will be the cause of the end of the world plus diseases AND I want the world to be like it is in the walking dead if you haven't seen this show It's awesome asf Go fuckking daryl! XD

Probably global warming.

The world will become so boring that everyone will kill to have some fun.

Fire. I believe the world will burn