Several studies have shown that global crop production needs to double by 2050 to meet the projected demands from a rising population and dietary shifts. A booming middle class of India and China is already eating more meat than ever. As demand outpaces food production, the number of people without enough to eat is actually increasing and could soon top one billion, according to the anti-poverty organization Oxfam. It means more than one in seven people waking up hungry and going to bed hungry. The agency warns the average price of staple foods will more than double in the next 20 years. Increasing biofuel consumption requires more cultivated areas representing another risk to growing more crops. Recent ActionAid research shows that, between 2009 and 2013, 98 European companies took over 6 million hectares of land in sub-Saharan Africa in order to grow biofuel crops. The report also estimated that European Union biofuel mandates alone could push up the price of some foods by as much as 36% by 2020, Europeanvoice.com reports. Increasing crop yields, rather than clearing more land for food production, is the most sustainable path for food security, the University of Minnesota research suggests. However, the study indicates that yields are no longer improving on 24–39% of our most important crop areas. Global average yield increases are 1.6% for maize, 1.0% for rice, 0.9% for wheat, and 1.3% per year soybean, which is not sufficient to double crop production by 2050. The world’s three most important food crops – rice, wheat and maize – are largely grown in the countries most at risk from rising temperatures, the Guardian reports. Maize, for example, can’t be grown above 30C, according to the newspaper. All food futurologists agree people can’t go on eating the way they have. Scientists do not believe traditional farming alone will work, according to the Guardian. Earlier this year the Dutch Professor Mark Post made the first artificial meat hamburger. The creator of lab-grown meat used stem cells to create strips of muscle tissue.