The food industry and the agricultural sector is under a huge pressure as for how to tackle a growing population and falling crop outputs and it will only get worse in the coming years. Sustainable agriculture will get huge, because there is no alternative to a sustainable food system in the long run, and the field of research is growing, with GMO's, permaculture and other systems trying to be part of the puzzle.
And if worst comes to worst, you'll know how to grow your own food, so you won't have to starve.