At the current growth rate the global population is predicted to reach 10 billion by 2050. To feed this many people, food production worldwide will need to double during a period when climate change will worsen, fossil fuels will dwindle, and water availability will become unpredictable.

And in addition it is a well established fact that More than one billion people sleep with Empty Stomachs (A Hungry Planet Of Billion People). So it is definitely a challenge fotr humanity. But our history of existence says, we can fight it out...