@ mekrob
What about studying agriculture or forestry? Biomass is the future along with renewable energies.
And more specifical in agriculture would be the branch ecological agriculture and in forestry the agroforestry (combination of conventional farming and tree nursery):
In the comming years ecological agriculture will show it's inherent advantages opposite to conventional farming (heavily dependent on cheap oil or cheap energy). Agroforestry not even enhances and protects the soil (heavy rain, too much sun, too much wind as a windbreaker) with the stems and the leaves but it also serves as your private banking account, when e.g. you plant poplars and acacias. You can sell every year the crops and in 15-20 years (poplars) you get a lot of money for the wood (price is rising since about two years enormously, especially for trees which are brought up to sell as raw material for furnitures or for building stable houses).
About using bacteria instead of articial fertilizers:
"Ammonia and Biofuels"
http://www.theoildrum.com/comments/2006 ... 45/5999/89
Infos about a agroforestry project in Europe (SAFE-project = Silvoarable Agroforestry For Europe):
http://www.montpellier.inra.fr/safe/english/index.htm
Oil seeds do have a quite high yield in the southern US states (e.g. jatropha or oil palm).
The most important i think in choosing the best profession is to recognize what are my strengths and what are my weaknesses. That's really quite difficult. I didn't manage it. It has to do with selfconsciousness, you really has to know what do you like or what do you hate.
Once you find it out: the rest is easy
Money is in the long run not that important. If you follow your talents/abilitys money - but even better a satisfied life - will surely follow shortly afterwards.
Perhaps in the beginning or in the first two or three years you are looking at your friends which drive the better cars etc. You don't know really exactly what they are feeling.
If you earn a lot of money but you are every day frustrated by your job the risk that you one day has to do with cancer is great.