ASU05. ASUNCIÓN (PARAGUAY) 31/03/2012.- Un grupo de modelos luce prendas de papel hoy, sábado 31 de marzo de 2012, frente a un local comercial en Asunción (Paraguay), en el marco de la iniciativa global de La Hora del Planeta, promovida por el Fondo Mundial para la Naturaleza (WWF, por sus siglas en inglés), que busca generar conciencia sobre los efectos negativos del cambio climático. EFE/Andrés Cristaldo
People light candles during Earth Hour after lights were turned off in Cali March 31, 2012. Lights started going off around the world on Saturday in a show of support for renewable energy. REUTERS/Jaime Saldarriaga (COLOMBIA - Tags: ENVIRONMENT SOCIETY TPX IMAGES OF THE DAY)
Children light a candle while marching during Earth Hour in Lima March 31, 2012. Lights started going off around the world on Saturday in a show of support for renewable energy. REUTERS/Enrique Castro-Mendivil (PERU - Tags: ENVIRONMENT SOCIETY)