Food security means that all people at all times have physical & economic access to adequate amounts of nutritious, safe, and appropriate foods, which are produced in an environmentally sustainable and socially just manner.
The United Nations Food and Agriculture Organization (FAO) estimates that by 2050, a 70 percent increase in current food production will be necessary to meet the expanding demand for food.
At the present time, the food sector contributes over 20 percent of total greenhouse gases emissions. The challenge facing the world regarding food production is how to develop food systems that are not reliant on fossil fuel and that produce fewer greenhouse gases emissions.
Renewable energy systems reduce the food sector's dependence on fossil fuels and also reduce greenhouse gas emissions.
The combination of renewable energy with food production has the potential to increase food security by enabling more production at lower prices.
Renewable energy sources include hot water sources, wind energy, solar energy, hydroelectric power, bioenergy and geothermal energy.