To promote protection of the Amazon rainforest, Greenpeace and Brazilian officials are hosting an “environmentally correct” dance party over four days in a recovered mine in the state of Amazonas. Dubbed “Ecosystem 1.0,” the rave features DJs from around the world playing music in tents shaped like local Indian huts, where nongenetically engineered foods will be served. Organizers expect to draw at least 20,000 to the event, which ends on Sunday. Meanwhile, anti-nuke activists in Brazil are raving about a decision by the government to delay moving forward with a third nuclear reactor at a plant 80 miles west of Rio de Janeiro.