Reuters: Most biofuels harm rather than help the environment and the government should call a moratorium on increasing their use, a parliamentary committee said on Monday. "Biofuels can reduce greenhouse gas emissions from road transport — but at present most biofuels have a detrimental impact on the environment overall," Tim Yeo, chairman of the House of Commons Environmental Audit Committee (EAC) said. Biofuels can be substituted for fossil fuels and are seen by advocates as a way of …