Plant equipment remove garbage at the Nezahualcoyotl dump site in Mexico City February 6, 2009. Mexico City is facing a crisis over where to put its trash -- enough to fill four sports stadiums a year -- with its sprawling dump already crammed to bursting and under a closure order. One of the world's biggest landfills, the Nezahualcoyotl dump site is a fifth the size of Manhattan and sits inside the urban sprawl of the fast-growing Mexican capital. Picture taken February 6, 2009. [Agencies]