You are at your most confident and expansive when you are in service to others -- whatever that means to you. There is such a broad range of activities that improve the quality of life for other people that you will have no problem choosing any number of ways to pour yourself into this service-oriented work. Earth's environment is one area where you are likely to be motivated enough to do something besides worry and fret over how bad it has all become.
If there's one danger with this placement, it is being overly critical. You've got fine administrative skills, which can be useful in both paid and unpaid situations. You're a natural teacher, too, but may feel more comfortable teaching adults than children, for whom you don't have a lot of patience. You'd rather teach students who want to learn, rather than have students who are forced to be in school. Practical idealism rates high on your long list of admirable qualities, and you can set a wonderful example for others by generously donating your time, money, and energy to causes that you are devoted to. Everyone feels better when you do.