What might be the factors that have caused people killing themselves in 'The Happening' movie?

Question

It might be a kind of disease outbreak, biochemical weapons by 'anybody', it might be a natural known or unknown phenomena that has evolved in a radically different/uncontrollable/unknown way, it might be anything, but what clear is it spreads through the air.

Or it's just another science fiction that shows us that there are more things out there that we don't know yet.

Answer 1

from what i remember, it was plants rapidly evolving & releasing chemicals that blocked the human self defense/preservation response & caused mass suicides starting in densely populated areas and working down to groups of less and less people because the plants considered humans a threat.

basically it was a two hour "keep off the grass" sign...

Answer 2

maybe they are depressed

Answer 3

I just saw the movie last night. In the movie they led the characters through a chain of events that slowly told them how and why this was happening.

When they arrive at the house of the person who helped them get out of the town he shows them through a greenhouse that he owns. He tells them that it is scientifically proven that plants can communicate to eachother even through different species. then he says that plants only have one line of deffence against a threat since they cant just walk around and move to a different location. The plants have evolved to change the chemicals in them and let out a different chemical that would kill the thing that they though of as a "threat".

At the end of the movie the person on the news makes a theory that over time with humans polluting the earth and destroying wildlife, we have become  the biggest "threat" to this planet.

If you got lost anywhere i will sum it up: The trees did it because they hate us for polluting.

Answer 4

The director told them to do it.  That's how movies work.

Answer 5

it might be possible and if it is then don't p**s off the tree's

Answer 6

They said it was the bit in the brain that stopped you from killin yourself was switched off by thiese chemicals released from the trees/plants/bushes/grass and therefore allowed people to find the quickest possible way of killing themselves!

Answer 7

the main message is basically if we don't take care of our environment we are only hurting ourselves....just a big metaphor, i don't think this could really happen

Answer 8

well its just another lousy attempt to convince people of global warming by humans. It's like the rebal of the plants for "destroying" the earth.