16 novembre 2010: attivista subacqueo invoca: "Proteggiamo la barriera corallina ora"

A handout picture provided by Greenpeace of an activist holding a sign that reads ‘Protect the coral reef now’ as he dives in the Alacranes reef, in the Gulf of Mexico on 16 November 2010. Investigators have discovered in this reef the first evidence of coral bleaching, a consecuence of global warming. This manifestion takes place prior to the Global Warming summit that will be hosted by the Mexican city of Cancun from 29 November through 12 December 2010. EPA/LUIS SANDOVAL / GREENPEACE / HO EDITORIAL USE ONLY / NO SALES