Uploaded on 2016-04-05 by geogmau

![North Mexico City][1] ![South Mexico City][2] ![Pollution on west Mexico City][3] [1]: https://edxuploads.s3.amazonaws.com/1459898352698918.gif [2]: https://edxuploads.s3.amazonaws.com/14598983731332021.gif [3]: https://edxuploads.s3.amazonaws.com/14598983998778925.jpg