One of the main reasons I am interested in genetic modification is I believe it can help solve food shortages around the world by make crops such a wheat produce greater yields. But driving home today I saw a field full of rape seed and it got me thinking. What exactly is the greatest threat to global food security?
Originally I thought the primary threat was global warming. Greater weather extremes are devastating crops, from droughts to floods. Even increased pest numbers (locus for example) due to the higher temperatures. I believe that both of these issues can be effectively combated by genetic engineering. Both pest resistant crops and drought resistant crops can be developed through genetic engineering. But is this the main threat to food security.
The rape seed got me thinking. If all that land is being used to grow this inedible crop for use in biofuels, then that means there is less available land for growing edible crops. I did a bit of research about this and it turns out that many LEDC farmers are growing crops for biofuel production because it is more commercially viable. This means that in areas around these farms there is less available food and so food prices increase dramatically, leaving many people starving.
So what do you guys think is the biggest threat to global food security, Global warming or land use? Or maybe something entirely different.