The marshes of Ibera, in the Argentine province of Corrientes on the night of Nov. 4, 2009. The marshes are a wide network of ponds covering 25,000 square km. US billionaire Donald Tompkins, founder of the clothing brands North Face and Esprit, bought thousands of hectares in this immense system and is dedicating his life to fight for the environment, holding a "green war" with farmers in the area.