No, but a comet impact big enough to wipe out 3 billion people might.

Well technically a comet wouldnt have to be that big to wipe out 3 billion people... Would still be a fun experiment though :-D

OH!! ive got it. 3 billion humans, and 3 billion amoebas on each human, jump, tucking, and rolling, in one mass effort to spin the Earth! i swear to god its gunna work. lets do it

and this gives a great idea of how effective this would be, how much do you think it would affect you if 3 billion amoebas decided to jump all at once.  Even ignoring the law of conservation of momentum, the Earth is just WAY bigger than even three billion humans, and realistically, they'll be lucky to get 1 million. 

Now, the law of conservation of momentum could be gotten around, if that were the only problem.  Say by everyone jumping in a specific direction instead of up, and then doing a sweet tuck and roll on the landing, they could at least slow down or speed up the rotation of the Earth.  Sort of like how it is possible to move a skateboard on a level surface without touching the ground (with your body, the skateboard of course is grounded). Too bad (or good thing) we are just so infathomably tiny.

I'm glad this is in the humor section.

It's one thing to get 3 billion people to jump at the same exact time.  It's quite another to do it in order to knock the Earth out of orbit.......and then believe that in doing so it's going to end global warming.

!

I wonder if the parasite colonies that live on us humans ever come up with wild schemes like this...........

"Alright guys.....on the count of three, everybody jump!"  (10 million parasites jump at the same time......human walking across the kitchen to get to the fridge suddenly loses their balance and almost falls over onto their cat, and doesn't know why....!)

Pshh I know their gaurdian angel

It's one thing to get 3 billion people to jump at the same exact time.  It's quite another to do it in order to knock the Earth out of orbit.......and then believe that in doing so it's going to end global warming.

!

I wonder if the parasite colonies that live on us humans ever come up with wild schemes like this...........

"Alright guys.....on the count of three, everybody jump!"  (10 million parasites jump at the same time......human walking across the kitchen to get to the fridge suddenly loses their balance and almost falls over onto their cat, and doesn't know why....!)