U.N.: Not so fast with ethanol, other biofuels

ROME – Biofuels like ethanol can help reduce global warming and create jobs for the rural poor, but the benefits may be offset by serious environmental problems and increased food prices for the hungry, the United Nations concluded Tuesday in its first major report on bioenergy.

In an agency-wide assessment, the United Nations raised alarms about the potential negative impact of biofuels, just days after a climate conference in Bangkok said the world had both the money and technology to prevent the sharp rise in global temperatures blamed in part on greenhouse gas emissions.