I'm not quite sure how to read this line of yours:
"I'm heavily involved with the internal combustion engine with all their associated problems for the environment."
I'm not sure if you are saying you are involved with internal combustion engines despite their problems, or if you are interested in resolving those problems.
If the latter, there is a thread here that might interest you:
There are some very neat technologies that are starting to become available that could rid us of our need for internal combustion engines. I think this is pretty neat, to get more (power) for less (fuel).
Of course, I recognize that some people just like internal combustion engines, the same way some people just like horses - despite the fact that horses, in their day, polluted cities more than automobiles ever have. I think we can have the benefits of cleaner, cheaper power without having to give up all recreational use of internal combustion engines, just as people still keep horses.
Of course, most of the equipment in Antarctica at present uses internal combustion engines, so that's right up your alley.