human activities that destroys the atmosphere?
154228
Humans doesn't have the ability to destroy the atmosphere. We can only polute it. The only way to destroy the atmosphere is to blow up planet earth.
185520
If you picked up a person from 2006 and dropped them into the primitive earth (4.55 billion years ago), I don't know what would kill them first. There was no oxygen. High levels of methane and ammonia. No ozone layer to protect from radiation. And I believe there were no land masses yet.
923396
do you mean apart from radiation and dead people?
564994
Not the easiest thing in the world to get to O3 from H20...\n\nPlus large ice balls in our atmosphere have an unpleasent history of killing things...
10785
Nothing in particular. There is a big 'boom' (with no sound because there is no air to vibrate) and there is a lot of light and a release of radiation, but that is about it. Basically, take an explosion on earth, and take away the earth, and voila.
619614
The ozone layer decaying and eventually burning us all alive.
920005
Constructively, most landforms boil down to tectonics, which builds mountains, diverts streams, and shifts climate.\n\nThe #1 destructive force by far is erosion.
429048
Carbon dioxide and other wastes. WHOA the second answerer is definitely going to win the voting.
620422
There's lots of stuff blowing up from lots of places.  Dust storms in the Sahara desert blow tons into the Atlantic ocean.  Volcanos in the southwestern Pacific will color the North American skies.  The atmosphere has a lot of currents.  The jet stream is one, prevailing winds are another.\n\nThe earth has bands of atmospheric rotation.  I live in a zone called the prevailing westerlies.  Most of the winds tend to flow in a west to east direction.  If you are in North America, that Scandinavian pollen will have traveled the width of Asia, at its widest, raining down all along the way.  This shows the global nature of this zone of air flow.\n\nSomethings are simply too big for those zones to contain, in 1883 when Indonesian volcano Krakatoa exploded, its ash was seen in England.  May I suggest an article by Timothy Miner in the May 1, 2003 issue of Flying Safety.  Not all pollen, dust, pollutants travel that far.  Some are not as aerodynamic as others, and sometimes winds are not as strong when the pollination is taking place.  Still, there are times when smoke, ash, pollen, and other things can travel long, long distances when they are usually confined to very short areas.\n\nIf you have ever seen photos of great dust storms, consider that we call them sand storms, but the sand is only blowing up a very few feet from the ground.  Those enormous clouds of dirt are the dust the wind carries high into the air, taking them miles and miles away from their source, while the original sand the dust was shaken out of has fallen but a few fee from its original disturbance.  Pollen works that way too.
1136433
A mixture of H2O and air pollution...
183037
sky dive (something dangerous)
1157277
Humans killing each other off the face of the planet or another country dropping an Adam bomb!!!
26676
Objects of any size can enter the Earth's atmosphere. We don't exactly have a security guard keeping out the big ones.
665922
Use of nuclear weapons equate destruction of humanity. Why is this even up for debate?
578498
DESTROY THE HUMAN RACE AND SAVE THE PLANET
442314
Human beings.  Most destructive force on earth - they drain wetlands, flood dry lands, stomp out vegetation with their cattle, cut down whole forests, dump their toxic garbage into streams and rivers and the ground, deplete the sea of fishes  and mammals, fill the air with noxious fumes, etc...they poison the world.
368755
That we are killing eachother and destroying our environment