![Astonishing picture of Earth compared to all its water and air [Pic]](/opendir/images/thumbs/od_2292_1_1386928065.jpg)
This image really gives you a perfect idea on how fragile our planet is by adding all the air in another sphere. The density of the air pictured here corresponds to its density at sea level (one atmosphere.)
If we don't take care of that little water and air, we are screwed.
![Astonishing picture of Earth compared to all its water and air [Pic]](/opendir/images/thumbs/od_2292_2_1386928065.jpg) |