people whose livelihoods depend on the rain forest
support: the financial means whereby one lives; "each child was expected to pay for their keep"; "he applied to the state for support"; "he could no longer earn his own livelihood"
Career is defined by the Oxford English Dictionary as an individual's "course or progress through life (or a distinct portion of life)". It is usually considered to pertain to remunerative work (and sometimes also formal education).
The length of someone's life; a person's lifetime; Someone's manner of living; conduct, behaviour; A person's means of supporting himself
(Livelihoods) A livelihood comprises the capabilities, assets (including material and social resources), and activities required for a means of living. ...
(Livelihoods) Means of earning a living; source of income. In refugee and internally displaced person (IDP) contexts, livelihoods cover the range of activities and programs that work toward and enhance self-reliance including: non-formal education, vocational and skills training programs, income ...
the application of knowledge and skills will help an individual boost his self-esteem and eventually use these to achieve a better quality of life.