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Posted: 1/6/2012 4:15:48 PM EST
FILE - In this Jan. 16, 2011 file photo, an aerial view shows a neighborhood destroyed by landslides in Nova Friburgo, Brazil. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Felipe Dana, File)
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Posted: 1/6/2012 4:15:48 PM EST
FILE - In this Jan. 1, 2012 file photo, firefighters work in Torres del Paine National Park in Torres del Paine, Chile. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo, File)
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Posted: 1/6/2012 4:15:48 PM EST
FILE - In this Dec. 1, 2011 file photo, a cow tries to eat from a dried out cactus on a field near the city of Torreon, Mexico. Mexico is seeing the worst drought since 1941, when the country began recording rainfall. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Alberto Puente, File)
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Posted: 1/6/2012 4:15:47 PM EST
In this Jan. 20, 2009 file photo, cows lie dead on Hilda Schneider's farm in Stroeder, Argentina. Schneider lost around 500 cows in 2008 due to the drought. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Natacha Pisarenko, File)
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Posted: 1/6/2012 4:15:47 PM EST
FILE - In this Oct. 18, 2005 file photo, a man rows through dead fish floating on Lake Rei during a month long drought near the Amazon town of Careiro da Varzea, Brazil. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Marcio Silva, Agencia Estado, File)
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Posted: 1/6/2012 4:15:47 PM EST
FILE - In this Oct. 12, 2005 file photo, a drought affects the water levels of Anama Lake along the Amazon River, 168 kilometers from Manaus, Brazil. In 2005, the water level of the Amazon dropped by several feet because of a months long drought, halting travel and harming the important fishing industry. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Luiz Vasconcelos, Interfoto, File)
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Posted: 1/6/2012 4:15:47 PM EST
FILE - In this Dec. 7, 2011 file photo, a woman stands in a flooded disco in Juanchito, Colombia. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Carlos Julio Martinez, File)
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Posted: 1/6/2012 4:15:47 PM EST
FILE - In this May 21, 2011 file photo, a farm sits under floodwaters in Hato Grande on the northern outskirts of Bogota, Colombia.From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Fernando Vergara, File)
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Posted: 1/6/2012 4:15:47 PM EST
In this photo taken on Dec. 27, 2011, a dried rose sits at the Mongibelo Flower company after it was damage by flooding in Chia, Colombia. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Fernando Vergara)
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Posted: 1/6/2012 4:15:47 PM EST
In this photo taken on Dec. 27, 2011, dried roses sit in a destroyed greenhouse at the Mongibelo Flower company that was damaged by flooding in Chia, Colombia. From Chile to Colombia to Mexico, Latin America has been battered recently by wildfires, floods and droughts. While leading climate scientists are unable to pin any single flood or heat wave solely on climate change, experts say the number of extreme weather events is increasing worldwide and the evidence suggests global warming is having an impact. (AP Photo/Fernando Vergara)
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Posted: 12/11/2011 11:00:46 PM EST
Protesters hold a night vigil as talks at the climate change summit stall in Durban, South Africa, Friday, Dec 9, 2011. Negotiators from Europe, small islands threatened by rising oceans and the world's poorest countries sought to keep alive the only treaty governing global warming and to move on to the next stage, struggling against an unlikely alliance of the United States, China and India. Poster reads: Africa will burn. (AP Photo/Schalk van Zuydam)
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Posted: 12/10/2011 12:00:46 PM EST
Protesters hold a night vigil as talks at the climate change summit stall in Durban, South Africa, Friday, Dec 9, 2011. Negotiators from Europe, small islands threatened by rising oceans and the world's poorest countries sought to keep alive the only treaty governing global warming and to move on to the next stage, struggling against an unlikely alliance of the United States, China and India. (AP Photo/Schalk van Zuydam)
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Posted: 12/10/2011 12:00:46 PM EST
Protesters hold a night vigil as talks at the climate change summit stall in Durban, South Africa, Friday, Dec 9, 2011. Negotiators from Europe, small islands threatened by rising oceans and the world's poorest countries sought to keep alive the only treaty governing global warming and to move on to the next stage, struggling against an unlikely alliance of the United States, China and India. (AP Photo/Schalk van Zuydam)
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Posted: 12/10/2011 12:00:46 PM EST
Conference delegates leave the climate change summit as talks stall on the last day of the event in Durban, South Africa, Friday, Dec 9, 2011. Negotiators from Europe, small islands threatened by rising oceans and the world's poorest countries sought to keep alive the only treaty governing global warming and to move on to the next stage, struggling against an unlikely alliance of the United States, China and India. (AP Photo/Schalk van Zuydam)
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Posted: 12/10/2011 12:00:46 PM EST
Protesters hold a night vigil as talks at the climate change summit stall in Durban, South Africa, Friday, Dec 9, 2011. Negotiators from Europe, small islands threatened by rising oceans and the world's poorest countries sought to keep alive the only treaty governing global warming and to move on to the next stage, struggling against an unlikely alliance of the United States, China and India. (AP Photo/Schalk van Zuydam)
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Posted: 12/9/2011 3:42:21 PM EST
Environmental activists hold a candlelight vigil outside the United Nations Climate Change Conference (COP17) in Durban December 9, 2011. Developing states most at risk from global warming rebelled against a proposed deal at the talks on Friday, forcing host South Africa to draw up new draft documents in a bid to prevent the talks collapsing. REUTERS/Mike Hutchings (SOUTH AFRICA - Tags: ENVIRONMENT POLITICS TPX IMAGES OF THE DAY)
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Posted: 12/8/2011 3:30:47 PM EST
In this image made available by Greenpeace, activists form a giant lion's head as they call for on global warming during the second week of the climate conference in Durban, South Africa, Wednesday, Dec. 7, 2011. The conference is focusing on efforts to move toward a future agreement to legally bind all nations to emissions targets, including China and the United States. (AP Photo/Shayne Robinson, Greenpeace) EDITORIAL USE ONLY NO SALES
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Posted: 12/6/2011 12:35:47 PM EST
An activist wears a mask depicting the face of the European Commission President, Jose Manuel Barroso, during a protest in Durban, South Africa, Monday, Dec. 5, 2011. As talks to shore up the international response to global warming entered their second and crucial week in the South African coastal city of Durban environmentalists led a tour of a wetlands area near Durban. Wetlands _ critical for the health of South Africa's coasts and river systems _ already have been degraded or seriously altered by human activity, and experts fear global warming threatens them further. (AP Photo/Schalk van Zuydam)
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Posted: 12/6/2011 12:35:46 PM EST
A protester, with a model depicting the US, White House, left, stands during a protest in Durban, South Africa, Monday, Dec 5, 2011. As talks to shore up the international response to global warming entered their second and crucial week in the South African coastal city of Durban environmentalists led a tour of a wetlands area near Durban. Wetlands _ critical for the health of South Africa's coasts and river systems _ already have been degraded or seriously altered by human activity, and experts fear global warming threatens them further. (AP Photo/Schalk van Zuydam)
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Posted: 12/6/2011 7:30:48 AM EST
An activist wears a mask depicting the face of the Canadian Prime Minister, Stephen Harper, during a protest in Durban, South Africa, Monday, Dec. 5, 2011. As talks to shore up the international response to global warming entered their second and crucial week in the South African coastal city of Durban environmentalists led a tour of a wetlands area near Durban. Wetlands _ critical for the health of South Africa's coasts and river systems _ already have been degraded or seriously altered by human activity, and experts fear global warming threatens them further. (AP Photo/Schalk van Zuydam)
