U.N. official says biofuels raise food supply risk

HAVANA Wed Jul 4, 2007 5:17pm EDT

United Nations Environment Programme (UNEP) Executive Director Achim Steiner talks to the media at a hotel in Havana July 4, 2007. REUTERS/Enrique De La Osa

United Nations Environment Programme (UNEP) Executive Director Achim Steiner talks to the media at a hotel in Havana July 4, 2007.

Credit: Reuters/Enrique De La Osa

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HAVANA (Reuters) - The head of the U.N. Environment Program said on Wednesday Cuban leader Fidel Castro and others are justified in raising concern about the potential for ethanol production to threaten food supplies for the poor.

But UNEP director Achim Steiner said the jury is still out on whether risks outweigh the benefits when using food crops to produce ethanol as an alternative fuel.

Castro, who has taken to writing articles since he was sidelined from power last year by intestinal surgery, has attacked U.S. plans to increase biofuels output using crops such as corn, saying this will increase food prices and global hunger.

"What President Castro points to is something the U.N. Food and Agriculture Organization has also raised recently: That there is significant potential and risk for competition between food production and production for a global biofuels market," Steiner told Reuters during a environmental meeting in Havana.

"We have to be aware that there are risks, and for some countries those risks may not be worth taking," he said.

Steiner said it is too early to do a cost-benefit analysis on the use of ethanol, which environmentalists say will help slow global warming.

While current technology simply turns crops, such as sugar or corn, into ethanol, new biofuels products on the horizon use enzymes to turn crop residue or agricultural waste into fuel, he said.

The UNEP is studying the efficiency of biofuels while focusing on the development of international standards that would minimize social and environmental risks.

But Steiner added: "As long as the world is not able to agree on the norms and standards that should guide the development of a global biofuels market, the risks are going to be much higher."

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