I have always wanted to lecture at a university in a poor country, something like volunteering. I am currently in Australia and I have been in touch with a colleague in Sierra Leone (West Africa) who mentioned that they need lectures for a specific topic but they cannot afford to get hire one. So I thought of helping for one semester. The problem is traveling is expensive and most likely I will be taking an unpaid leave for that period.
My question is: are there agencies that can provide travel grants or cover some expenses for lecturers willing to volunteer in poor countries? Any pointers will be highly appreciated!