Greenpeace activists stand next to massive letters delivering the message "Time for Change: The Future is Renewable," next to the hummingbird geoglyph in Nazca in Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, which can be viewed from the sky, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the country's cultural landmarks. (AP Photo/Rodrigo Abd)
Greenpeace activists arrange the letters delivering the message "Time for Change: The Future is Renewable" next to the hummingbird geoglyph in Nazca, Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, which can be viewed from the sky, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the countries cultural landmarks. (AP Photo/Rodrigo Abd)
Greenpeace activists gather next to the hummingbird geoglyph in Nazca in Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, "Time for Change: The Future is Renewable," next to the hummingbird geoglyph which can be viewed from the sky, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the country's cultural landmarks. (AP Photo/Rodrigo Abd)
Greenpeace activists walk towards the historic landmark of the hummingbird in Nazca in Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, "Time for Change: The Future is Renewable" which can be viewed from the sky, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the country's cultural landmarks. (AP Photo/Rodrigo Abd) (AP2014)
A Greenpeace activist flies a drone in order to capture video and photos next to the hummingbird geoglyph in Nazca in Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, "Time for Change: The Future is Renewable" which can be viewed from the sky next to the hummingbird geoglyph, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the country's cultural landmarks. (AP Photo/Rodrigo Abd)
A Greenpeace activist meditates near the hummingbird geoglyph in Nazca in Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, "Time for Change: The Future is Renewable," near the hummingbird geoglyph which can be viewed from the sky, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the country's cultural landmarks. (AP Photo/Rodrigo Abd)
The geoglyph of the condor is seen from a plane in Nazca, Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, "Time for Change: The Future is Renewable," which can be viewed from the sky next to the hummingbird geoglyph, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the cultural landmarks of Peru. (AP Photo/Rodrigo Abd)
The geoglyph of the austronaut is seen from a plane in Nazca, Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, "Time for Change: The Future is Renewable," which can be viewed from the sky next to the hummingbird geoglyph, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the cultural landmarks of Peru. (AP Photo/Rodrigo Abd)
Greenpeace activists stand next to massive letters delivering the message "Time for Change: The Future is Renewable" next to the hummingbird geoglyph in Nazca in Peru, Monday, Dec. 8, 2014. Greenpeace activists from Brazil, Argentina, Chile, Spain, Germany, Italy and Austria displayed the message, which can be viewed from the sky, during the climate talks in Peru, to honor the Nazca people, whose ancient geoglyphs are one of the country's cultural landmarks. (AP Photo/Rodrigo Abd)