What on Earth are you talking about? Feed the world? That one takes the award BobMost of their arable land isn't being utilized, and they have enough food already.
They could easily feed the world.
Africa is the only part of the World having roughly the carbon footprint we all need to adapt. Imagine that. Do you know many people who would do that?
You could say that it's their problem, but read the Event article from earlier if you haven't. That indicates that someone has seen the light, and realized that you can't build a fortress, and they even had the CR to do it.
It is very difficult for us humans to care much about anyone outside our "tribe", family, friends and colleagues (who the beep invented the spelling of that word?). It's coded in our DNA.
Also we have a pretty lousy intuitive understanding of numbers. Close your eyes and imagine 5 apples. Then imagine 1000 or even worse a trillion.