Economists blamed the crisis on different causes, including high energy costs, bad weather and the use of food-crop lands for biofuel production.

VOA: special.2010.03.23

Being in a warmer environment,up to a point, will lead to decreased energy expenditure and therefore, at the same amount of food intake,weight gain."

VOA: special.2010.12.21

The Texas researchers estimated the energy intensity of preparing food from agriculture, transportation,processing and food sales.

VOA: special.2010.11.23

The plant is a major source of food energy and a major food security crop.

VOA: special.2010.06.08

Physical activity burns calories - the energy stored in food.

VOA: special.2010.06.08

He lists three essentials for life on this tough new planet: food,energy and the Internet.

VOA: standard.2010.04.21

The World Food Program says it provided high energy biscuits to 7,000 people last week and on Friday it began distributing a one-month ration of cereals, pulses,vegetable oil, salt and sugar to 10,000 people.

VOA: standard.2009.08.21