
Models plant a tree during a protest against pollution in Bogota April 1, 2009. The protest was part of a campaign organized by a magazine to promote the use of bicycles in the city to protect the environment.

A model poses for the media during a protest against pollution in Bogota April 1, 2009. The protest was part of a campaign organized by a magazine to promote the use of bicycles in the city to protect the environment.

A model poses for the media during a protest against pollution in Bogota April 1, 2009. The protest was part of a campaign organized by a magazine to promote the use of bicycles in the city to protect the environment.

Models ride bicycles during a protest against pollution in Bogota April 1, 2009. The protest was part of a campaign organized by a magazine to promote the use of bicycles in the city to protect the environment.

University students protest against the 50th Annual Meeting of the Inter-American Development Bank in Medellin, Colombia, Thursday, March 26,2009.

Five models wearing gas masks pose for a photo as they protest worldwide pollution in Bogota, Wednesday, April 1, 2009.

University students protest against the 50th Annual Meeting of the Inter-American Development Bank in Medellin, Colombia, Thursday, March 26,2009.

Five models wearing gas masks pose for a photo as they protest worldwide pollution in Bogota, Wednesday, April 1, 2009.