@Mor - I actually think it's going to end up being one of the big growth industries in the next few decades. One of the things that has happened a lot in the world recently is the degradation of soil. When you change a habitat, for example, cutting down a forest in order to make farms, you end up ruining the soil in the long run so that nothing will grow there.
And people think droughts are mainly to do with the weather, but a lot of it has to do with the soil as well. So, if we had more people working out how to understand and rehabilitate soil to a better condition, we'd end up with fewer droughts and fewer disasters in general (since understanding soil science can also help reduce flooding and slips and so forth).
It's one of the most important subjects of the century as far as I'm concerned and one that I hope a lot of people take up as a career.