“He said land for growing food is being taken to grow fuels for crops and it will cause starvation greater than the famines caused by Russian dictator Stalin during the 1930s and Chairman Mao in the 1950s.”

While the rhetoric is over the top he is right in that by diverting corn from feeding people/animals to the biofuel industry, the end result is an increase in price and availability of corn/meat to those with little or no income.

But not to the point that millions are going to die from starvation.

How Biofuels Could Starve the Poor

Food prices dim biofuel glow

/Yes, I know those are old stories, but they are imho still valid.